. The doctor insisted that only by this

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问题选择题

The doctor insisted that only by this ______ could the patient survive in the operation.

A．way

B．method

C．means

D．meaning

答案

答案：C

选择题

—Nice to see you. I ________ you for a long time.

—I ________ in Beijing. I've just got back. [ ]

A. hadn't seen; was

B. haven't seen; shall be

C. haven't seen; was

D. didn't see; have been

判断题

目前，光控晶闸管换流器在我国大多数直流输电工程中得到了非常广泛的应用。