题目内容

进行绕组各分接位置电压比的测量时，要求电压比测试仪的精度不低于0.2%电压比电桥精度不低于（）。

A. 0.1%
B. 0.2%
C. 0.3%
D. 0.5%

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Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.

A. Expect to see cirrus clouds followed by altostratus and nimbostratus clouds
B. Alter course to remain in the navigable semicircle
C. Prepare for gusty winds，thunderstorms，and a sudden wind shift
D. Expect clear weather，with steady winds and pressure，until the front passe

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