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(单选题) With more forests being destroyed, huge quantities of good earth _____ each year.( )(本题2.0分)
A、 is washing away
B、 are being washed away
C、 are washing away
D、 is being washed away
A、 is washing away
B、 are being washed away
C、 are washing away
D、 is being washed away
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