. Now everyone is concerned about how to conquer the economic crisis is very important fo

问题补充：

. Now everyone is concerned about how to conquer the economic crisis is very important for us to be able to preserve our standard of living.

A. which success

B. its success

C. the success of which

D. the success of it

答案：

A. which success

B. its success

(答案→)C. the success of which

D. the success of it

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