题目内容

________, we’d better make some changes in the plan.

A. That is the case
B. That having been the case
C. That to be the case
D. That being the case

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绕组Yy联结的三相变压器的二次侧的额定电流等于()

A. 变压器额定容量除以一次侧相电压的3倍
B. 变压器额定容量除以二次侧额定电压2的平方根倍
C. 变压器额定容量除以二次侧额定电压的3的平方根倍

The course ________ a class book, a practice book and an audio tape.

A. highlights
B. makes up
C. consists
D. comprises

It was decided that the search ________.

A. was ended
B. be ending
C. had to be ended
D. be ended

He is ________ more hardworking than any of the other boys in the class.

A. by far
B. by way of
C. by now
D. by and by

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