题目内容
Let’s learn to use the problem we are facing ____ a stepping-stone to future success.
A. to B. for C. as D. by
C
句意: 让我们学会把我们现在所面临的问题作为将来成功的垫脚石。use…as把……作为。we are facing是定语从句, 修饰名词problem。

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题目内容
Let’s learn to use the problem we are facing ____ a stepping-stone to future success.
A. to B. for C. as D. by
C
句意: 让我们学会把我们现在所面临的问题作为将来成功的垫脚石。use…as把……作为。we are facing是定语从句, 修饰名词problem。