问题
单项选择题
The key ( ) the company's success was that it employed an excellent manager.
A．to
B．for
C．around
D．about
答案
参考答案：A
解析：[精解] the key to意为“……的关键”。
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The key ( ) the company's success was that it employed an excellent manager.
A．to
B．for
C．around
D．about
参考答案：A
解析：[精解] the key to意为“……的关键”。