Potential energy that is not so obvious as kenetic energy exists in many things.句中定语从句兼具下面哪种状语功能?
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Potential energy that is not so obvious as kenetic energy exists in many things.句中定语从句兼具下面哪种状语功能?
A.原因
B.让步
C.条件
D.时间
参考答案: