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问题
单项选择题
发电机在不对称运行时,会出现()电流。
A.正序;
B.负序;
C.工频;
D.倍频。
答案
参考答案:B
选择题
How can you step into the lab with your shoes on? You're _____ to take them off before you enter it. I told you so!
A. expected
B. supposed
C. disagreed
D. permitted
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判断题
康复护理程序包括收集资料,建立病案,制定计划、实施计划、评价再计划。
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