In freezing weather, snow can turn into ice, which is easy to ________.A．be sl_刷题宝

题干

In freezing weather, snow can turn into ice, which is easy to ________.

A．be slipped	B．slip
C．slip on	D．be slipping

上一题下一题 0.64难度单项选择更新时间:2014-07-10 05:21:32

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