单项选择题

The substance can be added to gasoline to accelerate the speed of automobiles.

A．quicken
B．shorten
C．loosen
D．enlarge
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单项选择题
Professional baseball teams can continue to play for a long period of time in the fall after the regular baseball seasons of spring and summer.
A． Right
B． Wrong
C． Not mentioned
单项选择题
Baseball shares many features with the English game of cricket.
A． Right
B． Wrong
C． Not mentioned
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