The report aims to explain how these conclusions ______.A．were reachedB．had been_刷题宝

题干

The report aims to explain how these conclusions ______.

A．were reached

B．had been reached

C．have reached

D．had reached

上一题下一题 0.65难度单项选择更新时间:2015-11-23 05:51:42

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