The magician picked several persons from the audience and asked them to help him
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The magician picked several persons from the audience and asked them to help him with the performance.
A.by accident
B.on occasion
C.at random
D.on an average
试题答案
C
at random(="without" aim or purpose)随便地，胡乱地：His clothes were scattered about the room at random.By accident意外地；on occasion偶尔；on an average平均计算。