题目内容
2.在生产中由于振动对手臂的伤害会导致手臂振动病。减轻或防范对手臂振动伤害的措施较多。下列措施中，预防手臂振动病效果不佳的是( )。
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大幅度振动的影响，可使（ ）紊乱。
在采煤工业中，主要的职业危害因素包括____。
振动的控制措施有哪些？
Direction: In this section there is a passage with 10 blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Each choice in the bank is identified by a letter. Please choose the corresponding letter. You may not use any of the words more than once.A. rightB. postpone C. decisionsD. diedE. likeF. fortiesG. endH. stayingI. agesJ. neverThese data indicate that many people in these countries are staying single until they are older. These young adults- the majority of them are women- __1.__marriage until their late twenties and thirties or even ___2.__. One reason they often give for __3.___single is that they have not met the ___4.___person. Others say that marriage involves too much responsibility or that they simply ___5.___being single. They are free to spend their money and time as they wish. They are free to start new relationships or __6.___old ones. In short, they can make their own __7.___. It is not only young people who are single, however. It is increasingly common for people of all __8.___. This includes people who have __9.___married as well as people who are no longer married because they are discovered or their spouses have __10.__.
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