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简述短路状态的电路特征?

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Allowance for fresh water refers to().

A. the provision to be provided when the vessel sails in fresh water area
B. the fresh water to be carried by a vessel
C. the allowance of fresh water for each crew member when in distress at sea
D. the amount of free board decreased when sailing in fresh water area

简述三相异步电动机修复后的试验步骤?

一般而言,降价的幅度一般不宜过大,尽量一次降到位,切不可出现价格不断下降的情况。

A. 正确
B. 错误

油井配产就是将油田或区块的年产油量指标,通过科学预算,比较合理的分配到采油小队。

A. 正确
B. 错误

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