2. 公务员
  3. Little______about MERS(中东呼吸综合征) so far, so there is no doubt that many people are afraid when talking about the disease.

Little______about MERS(中东呼吸综合征) so far, so there is no doubt that many people are afraid when talking about the disease.

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问题 Little______about MERS(中东呼吸综合征) so far, so there is no doubt that many people are afraid when talking about the disease.
选项 A、did scientists known
B、scientists have known
C、have scientists known
D、had scientists known
答案C
解析 本题考查时态和倒装。根据关键词so far，可以确定用现在完成时，故排除A、D两项；little表示否定，放句首要倒装。故选C。
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