The magician picked some persons from the audience _____ and asked them to help
题型：不详难度：来源：
The magician picked some persons from the audience _____ and asked them to help him with the performance．| A．by accident | B．in vain | C．at random | D．on average |
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答案
| C |
解析
试题分析：短语辨析。A偶然；B徒劳；C胡乱；D平均；句意：那位魔术师从何观众中胡乱调出了几个人，并请求他们帮助表演。根据句意说明C正确。
点评：本题考查的介词的短语辨析，要根据上下文的语境来进行辨析。在平时的学习中要注意对这些短语的分类辨析。 |
举一反三
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