问题描述：
选择题He may try to solve a problem by using the theories..
He may try to solve a problem by using the theories（ ）science or by experimenting through trial and error.
A.of
B.with
选择哪一个呢?为什么?
He may try to solve a problem by using the theories（ ）science or by experimenting through trial and error.
A.of
B.with
选择哪一个呢?为什么?
问题解答：
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