问题
单项选择题
绝缘油酸值检测所用氢氧化钾乙醇溶液保存不宜过长，当氢氧化钾乙醇溶液变（）或产生沉淀时，应对其清液重新进行标定后方可使用。
A.黄
B.红
C.绿
D.灰
答案
参考答案：A
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绝缘油酸值检测所用氢氧化钾乙醇溶液保存不宜过长，当氢氧化钾乙醇溶液变（）或产生沉淀时，应对其清液重新进行标定后方可使用。
A.黄
B.红
C.绿
D.灰
参考答案：A
| 完形填空 | |||
| Bill likes football very much, and he often goes to matches in our 1 on Sundays. He doesn't go to the best seats, 2 they are very 3 . There was a big football match in our town last Sunday. 4 it was very cloudy, but then the sun 5 , and it was very hot. There were a lot of people on benches 6 Bill at the match. Bill was on one bench and there 7 a fat man on a bench behind him. At first the fat man was cold, 8 then he was very hot. He took his coat off and put it in front of him, but it fell on Bill's head. Bill was not angry. He took the coat 9 his head, looked at it and then. laughed and said, "Thank you. but 10 are the trousers?" | |||
| ( )l. A. village ( )2. A. so ( )3. A. dear ( )4. A. At that time ( )5. A. went down ( )6. A. in front of ( )7. A. was ( )8. A. or ( )9. A. away ( )10.A. how | B. town B. if B. cheap B. Then B. was away B. behind B. had B. but B. from B. when | C. country C. because C. nice C. The first C. came out C. around C. was going to be C. and C. on C. whose | D. home D. but D. high D. At first D. came down D. near D. would be D. so D. off D. where |