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如果患儿进一步少尿，BUN，Cr进行性增加，还应考虑
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Security and commodity exchanges are trading posts where people meet who wish to buy and sell. The exchanges themselves do no trading,they merely provide a place where prospective buyers and sellers can meet and conduct their business. Wall Street,although the best known,is not home of exchanges in the United States. There are the cotton exchanges in New Orleans and Chicago; the Mercantile Exchange which deals in many farm products in Chicago; and grain exchanges in many of the large cities of the Midwest. Some exchanges,like Chicago Board of Trade, provide market services for several kinds of products. These trading posts where products may be brought or sold are called commodity exchanges. The security exchanges,on the other hand,are meeting places where stocks and bonds are traded. Like the commodity exchanges,they help serve the economic life of the country. But when their operations get out of hand,they may become very dangerous. In 1929,the security exchange,or stock market,contributed to a crash-a sudden sharp decline in the value of securities. Many people lost fortunes; many corporations were bankrupted; many workers lost their jobs. The crash of 1929 has been attributed to many causes,among them wild and unwise speculation by many people and dishonest practices on the part of some business and of some members of the exchanges. Today,however,investing through security exchanges and trading on commodity exchanges has been made safer by regulations set up by the exchanges themselves and by regulations of the United States government. In 1922,the government instituted the Commodity Exchange Commission which operates through the Department of agriculture; and in 1934,the Securities Exchange Commission,to protect investors and the public against dishonest practices on the exchanges.
Security and commodity exchanges are meeting places for buyers and sellers of_____.
肩先露的指示点是
4岁男孩，平时常有气急和青紫，行走或游戏时喜主动下蹲片刻。查体：发育、营养差，口唇及指(趾)甲床青紫，胸骨左缘第3肋间可闻及3／6级喷射性收缩期杂音，肺动脉第二音消失。诊断考虑为
During the past ten or fifteen years,a great deal of attention has been【C1】______to"telling it like it is," or "letting it all hang out" My impression is that this overzealous devotion to speaking ones mind has more often led to hurt feelings and ruined relationships than to great joy and fulfillment. I think we generally agree that never expressing real feelings and repressing all less-than-lovely thoughts about each other【C2】______leads to constructive communication. Its a great relief to allow ourselves the luxury of acknowledging our human frailties and pursuing more honest relationships with others. But we need to strike a【C3】______between telling it all and telling nothing. Recently I received a letter from a mother who had been persuaded by her troubled twenty-five-year-old son to attend a weekend marathon with him. Under pressure from the group,her defenses collapsed and she heard herself telling her son for the first time that he had been an accident-that she hadnt been planning to have a child. He in【C4】______told her that he couldnt recall a single day in his childhood that he d been happy. "At that time," this woman wrote,"it seemed helpful. We cried and we made【C5】______; I thought telling the truth had been good for us. But the trouble is.it wasnt the whole truth. By the time Tommy was born I did want him,and at【C6】______he was happy. Ever since that day,weve both been haunted by some terrible feelings we shared. " I must admit that Ive come to the conclusion that some things are better left unsaid. Honesty is a fine policy as【C7】______as we know what the truth really is-but most of the time we dont Its a fine goal to encourage children to express their real feelings. And many marriages have been saved by an open confrontation of deep and painful misunderstandings. But we need a new sense of balance. Disclosure is not a panacea for every problem【C8】______even an end in itself. Its useful and freeing under some circumstances and terribly hurtful and damaging under others. Its a good idea,I think,to【C9】______your tongue for ten or fifteen minutes before saying whats【C10】______your mind. Try to decide whether its going to open up new and better avenues of communication or leave wounds that may never heal.
【C1】
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