单项选择题

A．Regular driver training.
B．Improved highway design.
C．Stricter traffic regulations.
D．Better public transportation.
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单项选择题
A．Have a rest.B．Drink lots of water.C．Takes vitamin C.D．Warm herself.
A．Have a rest.
B．Drink lots of water.
C．Takes vitamin C.
D．Warm herself.
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Article Three
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