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【判断题】
任意三相交流电路中，线电压均为相电压的【图片】倍。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】任务型阅读（10小题*1=10分） Street Markets around the World There are many ways of shopping. You can shop by telephone, by post or through your home computer, but for many people, the most exciting way to shop ...
【单选题】What can readers find out from this text?
A.
how many customers Mr Bird has
B.
how to make shoes like Mr Bird
C.
how to get to Mr Bird's London shop
D.
how much Mr Bird's shoes cost
【多选题】哪些情况下,力系的主矩与简化中心的位置无关?
A.
主矢等于0，主矩不等于0
B.
主矢不等于0，主矩等于0
C.
主矢等于0，主矩等于0
D.
主矢不等于0，主矩不等于0
【单选题】听力原文：The minutes contains many typos. (A) Yes, the container wasn' t big enough. (B) I should have reviewed it more carefully. (C) Yes, it will start in 10 minutes. (22)
A.
B.
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