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【单选题】
电动机的有功功率损耗包括铜损耗、损耗、 ( )和机械损耗。A.
固定损耗
B.
杂散损耗
C.
涡流损耗
D.
可变损耗
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反馈参考答案：
举一反三
【简答题】Every time she tried to argue with her identical twin Katie, she would ually cry her eyes out. (end up)
【单选题】Every time she was in trouble, she went to him for help, as he said he ________ do anything for her.
A.
should
B.
must
C.
would
D.
might
【单选题】Every time when she tried to move her body, she let out a ______in pain.
A.
wail
B.
whimper
C.
moan
D.
weep
【单选题】The little girl was so shy that she ______ every time she was spoken to.
A.
flashed
B.
blushed
C.
blundered
D.
blossomed
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