单项选择题

The magician picked out several persons ______ from the audience and asked them to help him with the performance.

A．by accident
B．on average
C．on occasion
D．at random
<上一题 目录 下一题>
热门 试题

单项选择题
Strict sanitary procedures formulated by our municipal government help to ______ out breaks of diseases.
A．preview
B．forestall
C．ignite
D．fluctuate
单项选择题
This teaching method is a ______ of many methods which have been used for decades in the country.
A．symposium
B．symphony
C．spectrogram
D．synthesis
相关试题