单项选择题

According to the international regulation, the playing of the national anthem ______ all sports events.

A．tepels
B．remarks
C．precedes
D．requires
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单项选择题
Unlike a judge, who must act alone, a jury discusses a case and then reaches its decision as a group, thus minimizing the effect of ______ bias.
A．legal
B．professional
C．individual
D．unexpected
单项选择题
Although Ms. Brown found some of her duties to be ______, her supervision of forty workers was a considerable responsibility.
A．ambiguous
B．provisional
C．menial
D．unique
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