单项选择题

A．Physics.
B．Mathematics.
C．Environmental science.
D．Life science.
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单项选择题
A．The man should start running daily.B．She also prefers to exercise in the afternoon.C．It’s important to warm up before exercising.D．The man should continue his exercise program.
A．The man should start running daily.
B．She also prefers to exercise in the afternoon.
C．It’s important to warm up before exercising.
D．The man should continue his exercise program.
单项选择题
A．It will allow fewer trees to be cut.B．It will require less labor costs.C．It saves some shipping costs.D．It will make them more competition.
A．It will allow fewer trees to be cut.
B．It will require less labor costs.
C．It saves some shipping costs.
D．It will make them more competition.
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