The designing of a satellite in the heavenly environment is not absolutely an easy job.

单选

A by all means

B by any means

C by every means

D by no means

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正确答案：

本题解析：

【答案】D
【解析】by all means“一定”，by any means“无论如何”，by every means用得较少，意为“竭尽全力”，相当于by all means，by no means“决不”。