About 75% percent of the students can go swimming ____the rest can't.
A．whileB．a(chǎn)ndC．so D．or
A

試題分析：句意：大約百分之七十五的學生能去游泳，然而其余的不能。While當……的時候，而。然而；and和；so所以；or或者，否則。故選A。
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