问题
单项选择题
汽轮机停机后需要一周以上的较长期停运，必须投入汽缸的干燥系统，将汽轮机内部的相对湿度控制到（）以下。
A.50％；
B.20％；
C.40％；
D.30％。
答案
参考答案：A
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汽轮机停机后需要一周以上的较长期停运，必须投入汽缸的干燥系统，将汽轮机内部的相对湿度控制到（）以下。
A.50％；
B.20％；
C.40％；
D.30％。
参考答案：A
| 完形填空 | |||
| A man works in a factory and gets his pay at the end of the week. 1 Saturday he 2 the money after he gets his pay. Suddenly he 3 that it is wrong. He counts the money 4 , but still there are five pounds more than he 5 get. He puts the money in his pocket and says nothing 6 others. A week goes by and it's the pay 7 again. But this time there are five pounds less. He is 8 angry that he goes immediately(立即)to see the boss.The boss says to him,"Didn't you notice there was a mistake 9 week?" "For one mistake,I can close my 10 ,but for two mistakes, no,I can't. " | |||
| ( )l. A. At ( )2. A. studies ( )3. A. thinks ( )4. A.again ( )5. A. should ( )6. A. with ( )7. A. day ( )8. A. too ( )9. A. last ( )10.A. wallet | B. In B. counts B. believes B. more B. will B. about B. work B. much B. this B. eyes | C. From C. costs C. knows C. up C. may C. to C. time C. so C. next C. ears | D. One D. spends D. finds D. once D. does D. for D. week D. such D. one D. book |