问题
单项选择题
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
参考答案：C
解析：
考查定语从句。the Success of which中的which指代to conquer the economic crisis。