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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1584

. Inoculation(接种) of the H1N1 vaccine ___ launch another round to weak people in February,
but due to a global shortage, that has not happened yet.

A.was made to B.was supposed to C.was designed to D.was hoped to
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.Inoculation(接种)oftheH1N1vacci