皮皮学，免费搜题
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【单选题】
不存在换向问题的测功机是A.
直流电力测功机
B.
交流电力测功机
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】I didn't see your sister at the party. If she __, she would have met my brother.
A.
has come
B.
had come
C.
did come
D.
came
【单选题】— Whose T-shirt is this? — It's _____________. [ ]
A.
your sister
B.
your
C.
your sister's
【单选题】----Please call me Diane! ------- Diane asks John to use her_________ name.
A.
first
B.
family
C.
good
D.
bad
【单选题】I was supposed to go to a concert with your sister the other night, but your sister didn't turn up. I can't believe I have been______.
A.
given up
B.
stood up
C.
left up
D.
taken up
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