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寒冷季节火灾发生率比其它季节要高,扑救难度也大。..
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Five years have passed but the consequence of the research is still in doubt.A.outcomeB.j..
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__________ we shall raise ducks or geese remains to be decided.A. IfB. WhetherC. WhatD..
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--Mr. Smith looks sad today.--He is sad. Yes.....
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The courageous boy has been the subject of massive media coverage.A.continuousB.extensive..
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诊断痛风时,最重要的生化指标是()。A.嘌呤代谢障碍B.关节.....
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