单项选择题

The average speed of a ball hit by a Pingpang racquet (球拍)is the ______ among all ball games.

A．lowest
B．highest
C．quickest
D．most full
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A good reader is one can who read ______ the lines.
A．between
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C．in
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It rained hard yesterday, ______ prevented me from going to the park.
A．that
B．which
C．as
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