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
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单项选择题
Reading became difficult for the old lady, so the optician ______ her a pair of glasses to make her reading possible.
A．proscribed
B．inscribed
C．prescribed
D．described
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For many people, overeating and overspending are as ______ to Christmas as candles and holly.
A．integral
B．suitable
C．inevitable
D．compatible
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