At one time, she is fine, ________ at another, she is abnormal.A．andB．orC．butD．s_刷题宝

题干

At one time, she is fine, ________ at another, she is abnormal.

A．and

B．or

C．but

D．so

上一题下一题 0.64难度单项选择更新时间:2011-04-29 03:34:38

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