wide spread of H1N1 is challenge for the whole world. Confidence, cooperation and respon

发布时间：2020-08-16 06:43:55

     wide spread of H1N1 is      challenge for the whole world. Confidence, cooperation and responsibility are keys to overing it.
A. A; the
B. A; a
C. The; the
D. The; a

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A. A; the
B. A; a
C. The; the
(答案→)D. The; a
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