The tables and pictures help make ________ clear ________I wasn't sure of before

题干

The tables and pictures help make ________ clear ________I wasn't sure of before.

A．it; for me to understand what	B．it; everything
C．everything; to understand what	D．/; what

上一题下一题 0.64难度单项选择更新时间:2010-06-22 08:36:03

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