问题描述：
英语 6.Scandisk runs _____Windows Shut Down Correctly.
6.Scandisk runs _____Windows Shut Down Correctly.
A.once B.as though C.though D.even though
为什么
6.Scandisk runs _____Windows Shut Down Correctly.
A.once B.as though C.though D.even though
为什么
问题解答：
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