单项选择题

How many Olympic employees and volunteers were at the 23rd Olympic Games

A．Analyze performance.
B．Suggest ways to improve.
C．Eliminate the competition
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单项选择题
A．12:00.B．13:30.C．12:30.
A．12:00.
B．13:30.
C．12:30.
填空题
去掉what或把what改为that。
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