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Most people want to work, but it has become more difficult in today's world to find work for everybody. The economy of the world needs to grow by 4% each year just to keep the old number of jobs for people. Often this is not possible , and so more people are out of work. Some people have no jobs now because new machines can do the work of many people in a short time. Also, machines do not ask for more money and longer holidays. In all of the countries of the world, machines are taking work from people, not only in factories but also on the farms. One machine can often do the work of forty people. About 75,000 people are moving to the cities a day to look for jobs, but only 70% of them can find jobs. 1. It was _____ for people to find work before than today. A. not possible B. difficult C. more difficult D. easier 2. If the economy of the world grows by 4% each year, _____. A. people will have no jobs B. people can still have jobs as before C. 4%of the people will have jobs D. 97% of the people 3. One machine can do as much work as _____. A. 40% of the people B. 4% of the people in the world C. 40 people D. 75,000 people 4. How many people outside cities go into cities to look for jobs each day? A. 70% of the people B. 4% of the people in the world C. More than 75,000 D. About 75,000 people 5. Which of the following in NOT true? A. Machines are taking work instead of people. B. Now more people are out of work. C. Machines need more m oney and longer holidays. D. Most people want to have jobs.
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【判断题】拆除电气互锁正反转控制电路上的电气互锁,设置正、反转复式按钮构成的机械互锁,就得到了双重互锁正反转控制电路。
A.
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错误
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银行本票
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银行汇票
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商业承兑汇票
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暂停执业活动3~6个月
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暂停执业活动6个月~1年
C.
给予行政处分
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吊销医师执业证书
E.
追究刑事责任
【单选题】因出票人账户不足支付,而将不足支付的款项转入出票人逾期贷款账户的票据是______。
A.
银行本票    
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银行汇票
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商业承兑汇票    
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A.
TRAGE
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TRAD
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TRGM
D.
TAGHE
【判断题】电气互锁就是按钮互锁
A.
正确
B.
错误
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A.
容器内的压强不变
B.
容器内气体的密度不变
C.
相同时间内有 3molH-H 键断裂,有 6molN-H 键形成
D.
c(N 2 ) : c(H 2 ) : c(NH 3 ) : =1 : 3 : 2
E.
NH 3 的质量分数不再改变 2向某 2L 的密闭 容器中充入 2molN 2 和 6molH 2 , 10min 时测得容器内 NH 3 的浓度为 0.8 mol/L ,则 10min 内 N 2 表示的反应速率为 ________ ;此时 H 2 的转化率为 _______ 。 (12.0分)
【判断题】共线或平行的向量方向相同或者相反
A.
正确
B.
错误
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