题目内容
【题目】John can finish this task quickly ______ using better methods.
A. on B. in C. by D. at
【答案】C.
【解析】根据句意表通过用介词by.
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题目内容
【题目】John can finish this task quickly ______ using better methods.
A. on B. in C. by D. at
【答案】C.
【解析】根据句意表通过用介词by.