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【判断题】
三相电源相线与中性线之间的电压称为相电压。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】When I was a child, I had already learned that the earth ______ round the su n.
A.
moved
B.
is moving
C.
will move
D.
moves
【单选题】运动性的贫血的主要症状错误描述是：
A.
头痛头晕，失眠，反应能力下降
B.
女运动出现月经紊乱或闭经
C.
轻 重的贫血可出现肢体浮肿，心脏扩大等体征
D.
中重贫血可出现皮肤和黏膜苍白，舌乳头萎缩
【简答题】Listed i n the box below are some of the words you have learned in this unit. Complete the following sentences with the words given. Change the form where necessary. beloved board classic finances man...
【简答题】请仔细阅读下面图片中的语法规则并完成课后习题 Choose the best answer to complete each sentence. 1. I finally got the job I had dreamed about. i n my life I felt so happy. A. Had... never B. Have... never C. Never... had...
【简答题】What's the most difficult thing they've ever learned? Look at the people below and read the statements . Then watch Part 3 of the podcast and fill i n the blanks . A The most difficult thing 1) ____ i...
【简答题】A. Choose the best answer After all these experiences, I learned a lot and began to grow up. One autumn night , when my parents and I returned from my uncle's house, my mother said that we might leave...
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