36、H1N1 control and prevention is a        to Mexico as well as the whole world.

A.surprise         B.challenge          C.reaction          D.threat

36、B

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科目:高中英語 來源: 題型:

H1N1 control and prevention is a        to Mexico as well as the whole world.

A.surprise         B.challenge          C.reaction          D.threat

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科目:高中英語 來源:黑龍江省哈師大附中2008-2009學年下高一六月考英語試題 題型:014

H1N1 control and prevention is a ________ to Mexico as well as the whole world.

[  ]

A.surprise

B.challenge

C.reaction

D.threat

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