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Most whales must come up for air after several minutes, _______ a few can stay under water for ...
Mostwhalesmustcomeupforairafterseveralminutes,_______afewcanstayunderwaterforanhouror...
Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more. A.while B.or C.for D.so
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A |
考查连词;A. while 当…时候,虽然,然而,B. or否则,C. for因为,D. so 因此,句意是;大多数鲸鱼几分钟后要浮出水面呼吸,但还有些可以在水下呆一个小时或更多。选A。 |
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