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问题 单项选择题

如果发现直流双臂电桥检流计灵敏度不够，应增加灵敏度，变化0.2%检流计偏离零位约（）格。

A.1

B.2

C.3

D.4

答案

参考答案：A

单项选择题

Questions 11 to 15 are based on the following interview.

A. Because she sees more value in saris.
B. Because she has married an American.
C. Because she wants to be in style.
D. Because she likes to appear really exotic.
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问答题 简答题

为什么仪用气失去或压力降低到一定程度要故障停运机组，而厂用气却不需要？
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