- 磨光时塑料基托表面磨痕难以消除的原因是
- PFM冠牙本质瓷、切端瓷层产生气泡的原因哪一项不正确
- 儒家经典《大学》把君子人格的修养制定为“修身、齐家、治国、平天下”的程序，形成了一种从“个人”到“家”再到“天下”的层次扩展关系。这实质上体现了( )
- 基托折断的修理在基托组织面灌注石膏时起分离作用的除了
- 下列哪项不是人工牙折断、脱落的原因
- 红霉素与口服避孕药联用时降低避孕效果其原因是
- In recent years, railroads have been combining with each other, merging into super systems, causing heightened concerns about monopoly. As recently as 1995, the top four railroads accounted for under 70 percent of the total ton-miles moved by rails. Next year, after a series of mergers are completed, just four railroads will control well over 90 percent of all the freight moved by major rail carriers.Supporters of the new super systems argued that these mergers will allow for substantial cost reductions and better coordinated service. Any threat of monopoly, they argue, is removed by fierce competition from trucks. But many shippers complain that for heavy bulk commodities travelling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat.The vast consolidation within the rail industry means that only one rail company serves most shippers. Railroads typically charge such "captive" shippers 20 to 30 percent more than they do when another railroad is competing for the business. Shippers who feel they are being overcharged have the right to appeal to the federal government’s Surface Transportation Board for rate relief, but the process is expensive, time consuming, and will work only in truly extreme cases.Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone’s cost. If railroads charged all customers the same average rate, they argue, shippers who have the option of switching to trucks or other forms of transportation would do so, leaving remaining customers to shoulder the cost of keeping up the line. It’s theory to, which many economists subscribe, but in practice it often leaves railroads in the position of determining which companies will flourish and which will fail. "Do we really want railroads to be the arbiters of who wins and who loses in the marketplace" asks Martin Bercovici, a Washington lawyer who frequently represents shipper.Many captive shippers also worry they will soon be this with a round of huge rate increases. The railroad industry as a whole, despite its brightening fortuning fortunes, still does not earn enough to cover the cost of the capital it must invest to keep up with its surging traffic. Yet railroads continue to borrow billions to acquire one another, with Wall Street cheering them on. Consider the $ 10.2 billion bid by Norfolk Southern and CSX to acquire Conrail this year. Conrail’s net railway operating income in 1996 was just $ 427 million, less than half of the carrying costs of the transaction. Who’s going to pay for the rest of the bill Many captive shippers fear that will, as Norfolk Southern and CSX increase their grip on the market. It can be inferred from paragraph 3 that ().
- 塑料热处理过程中加热过快可导致
- 药效学相互作用是
- 牙体缺损修复时，增加抗力形的措施，除了
- According to psychologists, an emotion is aroused when a man or an animal views something as either bad or good, When a person feels like running away from something he thinks will hurt himself, we call this emotion fear. If the person wants to remove the danger by attacking it, we call the emotion anger. The emotions of joy and love are aroused when we think something that can help us. An emotion does not have to be created by something in the outside world. It can be created by a person’s thoughts.Everyone has emotions. Many psychologists believe that infants are born without emotions. They believe children learn emotions just as they learn to read and write. A growing child not only learns his emotions but also learns how to act in certain situations because of an emotion.Psychologists think that there are two types of emotions: positive and negative. Positive emotions include love, liking, joy, delight, and hope. They are aroused by something that appeals to a person. Negative emotions make a person unhappy or dissatisfied. They include anger, fear, despair, sadness, and disgust. In growing up, a person learns to cope with the negative emotions in order to be happy.Emotions may be weak or strong. Some strong emotions are so unpleasant that a person will try any means to escape from them. In order to feel happy, the person may choose unusual ways to avoid the emotion.Strong emotions can make it hard to think and to solve problems. They may prevent a person from learning or paying attention to what he is doing. For example, a student taking an examination may be so worried about failing that he cannot think properly. The worry drains valuable mental energy he needs for the examination. As used in the last sentence, the word "drains" means ().
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 36().
- 含铝、镁的吸收性制酸药可以使与其合并应用的药物吸收减少疗效降低，下列哪种药的吸收减少，药效增加
- 融化琼脂印模材料最为方便的方法是
- 以下情况需要垫底的是
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 21().
- 溶解度常以能溶解溶质的克数表示,是指下列哪种
- 丙磺舒与下列哪种药物合用需提高用量的是
- 口服阿糖腺苷应避免与下列哪种药合用
- PFM冠上釉时的炉温是
- 国内目前最常用的塑料聚合法为
- 下列哪种麻醉药与吗啡联用出现拮抗作用
- 金合金和铜合金的常用焊媒是
- 矫治过程中弹性橡皮圈不可用于
- 义齿蜡型分装法的要求，以下哪项不正确
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 33().
- 铸造金属全冠的正确冠边缘形式为
- 铸造正型卡环的卡环臂末端进入基牙倒凹的长度为全臂长的
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 29().
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 35().
- 单果是一个花中只有一个雌蕊发育( )的果实，包括肉果和干果。
- 铸造时铸件应位于铸圈内径的中心，蜡型至铸圈内壁的距离至少有
- 活动矫治器由固位、加力和连接三个部分组成，下列部件中属于加力部分的是
- 下列卡环中用于前牙的是
- In recent years, railroads have been combining with each other, merging into super systems, causing heightened concerns about monopoly. As recently as 1995, the top four railroads accounted for under 70 percent of the total ton-miles moved by rails. Next year, after a series of mergers are completed, just four railroads will control well over 90 percent of all the freight moved by major rail carriers.Supporters of the new super systems argued that these mergers will allow for substantial cost reductions and better coordinated service. Any threat of monopoly, they argue, is removed by fierce competition from trucks. But many shippers complain that for heavy bulk commodities travelling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat.The vast consolidation within the rail industry means that only one rail company serves most shippers. Railroads typically charge such "captive" shippers 20 to 30 percent more than they do when another railroad is competing for the business. Shippers who feel they are being overcharged have the right to appeal to the federal government’s Surface Transportation Board for rate relief, but the process is expensive, time consuming, and will work only in truly extreme cases.Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone’s cost. If railroads charged all customers the same average rate, they argue, shippers who have the option of switching to trucks or other forms of transportation would do so, leaving remaining customers to shoulder the cost of keeping up the line. It’s theory to, which many economists subscribe, but in practice it often leaves railroads in the position of determining which companies will flourish and which will fail. "Do we really want railroads to be the arbiters of who wins and who loses in the marketplace" asks Martin Bercovici, a Washington lawyer who frequently represents shipper.Many captive shippers also worry they will soon be this with a round of huge rate increases. The railroad industry as a whole, despite its brightening fortuning fortunes, still does not earn enough to cover the cost of the capital it must invest to keep up with its surging traffic. Yet railroads continue to borrow billions to acquire one another, with Wall Street cheering them on. Consider the $ 10.2 billion bid by Norfolk Southern and CSX to acquire Conrail this year. Conrail’s net railway operating income in 1996 was just $ 427 million, less than half of the carrying costs of the transaction. Who’s going to pay for the rest of the bill Many captive shippers fear that will, as Norfolk Southern and CSX increase their grip on the market. According to the passage, the cost increase in the rail industry is mainly caused by ().
- 红霉素与氨茶碱口服发生药物相互作用的原因是
- 下列应密闭保存的药物
- 铸造杆式卡环的卡环末端进入倒凹区的深度为
- 将琼脂液注入模型复制盒中，正确的操作方法是
- The more women and minorities make their way into the ranks of management, the more they seem to want to talk about things formerly judged to be best left unsaid. The newcomers also tend to see office matters with a fresh eye, in the process sometimes coming up with critical analyses of the forces that shape everyone’s experience in the organization.Consider the novel views of Harvey Coleman of Atlanta on the subject of getting ahead. Coleman is black. He spent 11 years with IBM, half of them working in management department, and now serves as a consultant to the likes of AT&T, Coca Cola, Prudential, and Merch. Coleman says that based on what he’s seen at big companies, he weighs the different elements that make for long term career success as follows: performance counts a mere 10%, image, 30%; and exposure, a full 60%.Coleman concludes that excellent job performance is so common these days that while doing your work well may win you pay increases, it won’t secure you the big promotion.He finds that advancement more often depends on how many people know you and your work, and how high up they are. Ridiculous beliefs.’ Not too many people, especially many women and members of minority races who, like Coleman, feel that the scales have dropped from their eyes."Women and blacks in organizations work under false beliefs," says Kaleen Jamison, a New York-based management consultant who helps corporations deal with these issues. "They think that if you work hard, you’ll get ahead that someone in authority will reach down and give you a promotion." She added, "Most women and blacks are so frightened that people will think they’ve gotten ahead because of their sex or colour that they play down their visibility." Her advice to those folks: learn the ways that white males have traditionally used to find their way into the spotlight. The best title for this passage would be ().
- 5%硫喷妥钠10ml加入5%葡萄糖注射液500ml中产生沉淀是由于：
- 焊料焊接中，焊料流布的特点是
- 位于大连接体与网状连接体相连接的、并被包埋在塑料基托内的条状金属部分叫做
- 肝药酶抑制剂可影响多种药物的正常代谢，使血药浓度升高或毒性增加，下述哪种药物不经肝代谢，不影响在肝代谢的其他药
- 利血平与直接作用拟交感药合用可使肾上腺作用增强，下述哪种药不属直接作用拟交感药
- 为使铸造金属全冠与邻牙有良好的邻接关系，同时又便于研磨抛光，下述方法中正确的是
- 碳酸锂与下列哪种药合用需监测血药浓度
- 以下哪项不是卡环折断的原因
- 多沙普仑作用为直接兴奋呼吸中枢，与下列药联用应谨慎使用．不宜与哪种药合用
- 苯福林与甲状腺素合用可使
- 维生素C注射液不能加入以下什么输液中使用
- 林可霉素或克林霉素与阿片类药联用时应注意
- 关于苯巴比妥的排泄，下列哪项是正确的：
- 药物相互作用是指
- 药物与血浆蛋白的结合，则：
- 氢化可的松注射液为100mg/20ml的乙醇-水等容混合液,使用时须稀释至500ml输液中,是为了避免
- 中国半殖民地半封建社会是一个性质畸形的社会。在这个社会中，与帝国主义相勾结的阶级包括
- According to psychologists, an emotion is aroused when a man or an animal views something as either bad or good, When a person feels like running away from something he thinks will hurt himself, we call this emotion fear. If the person wants to remove the danger by attacking it, we call the emotion anger. The emotions of joy and love are aroused when we think something that can help us. An emotion does not have to be created by something in the outside world. It can be created by a person’s thoughts.Everyone has emotions. Many psychologists believe that infants are born without emotions. They believe children learn emotions just as they learn to read and write. A growing child not only learns his emotions but also learns how to act in certain situations because of an emotion.Psychologists think that there are two types of emotions: positive and negative. Positive emotions include love, liking, joy, delight, and hope. They are aroused by something that appeals to a person. Negative emotions make a person unhappy or dissatisfied. They include anger, fear, despair, sadness, and disgust. In growing up, a person learns to cope with the negative emotions in order to be happy.Emotions may be weak or strong. Some strong emotions are so unpleasant that a person will try any means to escape from them. In order to feel happy, the person may choose unusual ways to avoid the emotion.Strong emotions can make it hard to think and to solve problems. They may prevent a person from learning or paying attention to what he is doing. For example, a student taking an examination may be so worried about failing that he cannot think properly. The worry drains valuable mental energy he needs for the examination. We learn from the passage that an emotion is created by something that().
- 喹诺酮类药与碱性药口服时可影响喹诺酮类药物的作用机理是
- 对氨基水杨酸与利福平合用时
- 维生素K1和低分子右旋糖酐合用使止血效果不佳是由于
- 由于充填造成支架移位的原因是
- 离心铸造机初速度过慢会造成的后果
- 肝素钠与下列哪一种药物可配伍使用
- 药物相互作用依对临床治疗的影响可分为
- 麻醉镇痛药与多种药联用有加重呼吸抑制或降低血压的危险，下列哪种药不是
- 第一次使用了“毛泽东思想的活的灵魂”的表述是在
- 请指出下列对盐酸普鲁卡因分解无影响的药物
- The house and carriage is a thing of the past. but love and marriage are still with us and still closely interrelated. Most American marriages, (21) first marriages uniting young people, are the result of mutual attraction and affection (22) than practical considerations.In the United States, parents do not (23) marriages for their children. Teenagers begin dating in high school and usually find mates through their own academic and social (24) (25) young people feel free to choose their friends from (26) groups, most choose a mate of similar (27) This is due in part to parental guidance. Parents cannot (28) spouses (配偶) for their children, but they can usually (29) choices by voicing disapproval of someone they consider unsuitable.(30) , marriages between members of different groups (interclass, interfaith, and interracial marriages) are (31) , probably because of the greater mobility of today’s youth and the fact that they are (32) by fewer prejudices than their parents. Many young people leave their hometowns to attend college, serve in the armed forces, (33) pursue a career in a bigger city.Once away from home and family, they are more (34) to date and marry outside their own social group.In mobile American society, interclass marriages are neither (35) nor astonishing. Interfaith marriages are (36) the rise, especially between Protestants (基督教徒) and Catholics ( 天主徒). On the other hand, interracial marriages are still very (37) . It can be difficult for interracial couples to find a place to live, maintain friendships, and (38) a family. Marriages between people of different national (39) (but the same race and’ religion) have been commonplace here (40) colonial times. 34().
- 下列哪项不是导致睾丸下降的异常因素
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