2. 外语
  3. The people for the experiment were chosen completely______ random.

The people for the experiment were chosen completely______ random.

admin2019-08-27  36
问题 The people for the experiment were chosen completely______ random.
选项 A、at
B、in
C、by
D、on
答案A
解析 句意：参加实验的人完全是随机挑选的。at random意为“任意地，随便地”，因此正确答案是A选项。
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