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单项选择题

A candle is used to burn at auction sales______.

A．because they took place at night
B．as a signal for the crowd to gather
C．to keep the auctioneer warm
D．to limit the time when offers could be made

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热门试题

单项选择题The qualities of the goods sold by auction are______.

A．usually good
B．always poor
C．different
D．neither high nor poor

单项选择题Evidence of past climatic changes indicates that______.

A．human activities have accelerated changes of Earth's environment
B．Earth's environment will remain mild despite human interference
C．Earth's climate is bound to change significantly in the future
D．Earth's climate is unlikely to undergo substantial changes in the future