He is ________ to visit us if he knows where we live.
A. likely
B. possible
C. probable
D. necessary
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________ was proved that he was the guilty man.
A. It
B. He
C. So
D. As
He ________ his way through the crowd and followed her.
A. rushed
B. thrust
C. went
D. threw
She ________ about the time of flights to Shanghai.
A. inquired
B. required
C. informed
D. revealed
一台三相异步电动机的额定电压是220/380V,应使定子绕组为()联接才能使电动机的功率不变。
A. △/Y
B. Y/△
C. Y/Y
D. △/△