The findings of the research, _________ on a lot of experiments, are convincing._刷题宝

题干

The findings of the research, _________ on a lot of experiments, are convincing.

A．to base

B．based

C．is based

D．basing

上一题下一题 0.85难度单项选择更新时间:2011-05-18 08:14:32

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