带电作业过程中,操作人员()A.可以接听手机电话 B.有振铃声但不接电话 C.要求关

题型:单项选择题

问题:

带电作业过程中,操作人员()

A.可以接听手机电话

B.有振铃声但不接电话

C.要求关机

考点:输电线路带电作业输电线路带电作业题库
题型:单项选择题

盐酸氯丙嗪易被氧化是因为含有()。

A.酯键

B.酚羟基

C.吩噻嗪环

D.芳伯氨基

E.酰胺键

题型:单项选择题

1985年9月10是第一个教师节,今年是第______个教师节.

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强化地板采用(),铺装的时候地面要求平整、干燥。

题型:单项选择题


Directions: There are 10 blanks in the following passage. For each numbered blank, there are 4 choice marked A, B, C and D.

During recent years we have heard much about "race": how this race does certain things and that race believes certain things and so on. Yet, the (51) phenomenon of race consists of few surface indications.
We judge race usually from the coloring of the skin: a white race, a brown race, a yellow race and a black race. But (52) you were to remove the skin you could not tell anything about the race to which the individual belonged. There is nothing in physical structure, the brain or the internal organs to (53) a difference.
There are four types of blood. All types are found in every race, and no type is distinct to any race. Human brains are the (54) No scientists could examine a brain and tell you the race to which the individual belonged. Brains will (55) in size, but this occurs within every race. (56) does size have anything to do with intelligence. The largest brain ever examined belonged to a person of weak (57) . On the other hand, some of our most distinguished people have had (58) brains.
Mental tests which are reasonably (59) show no differences in intelligence between races. High and low test results both can be recorded by different members of any race. (60) equal educational advantages, there will be no difference in average standings, either on account of race or geographical location.

A.complete

B.full

C.total

D.whole

题型:单项选择题

调速器运行中的监视项目有哪些?

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