单项选择题

A．Two.
B．Three.
C．Four.
D．Five.
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单项选择题
A．She also prefers to exercise in the morning.B．It’s important to warm up before exercising.C．The man should start running daily.D．The man should continue his exercise program.
A．She also prefers to exercise in the morning.
B．It’s important to warm up before exercising.
C．The man should start running daily.
D．The man should continue his exercise program.
单项选择题
A．One improves muscular action consciously.B．One performs simple actions without working.C．One always knows what his muscles are doing.D．One’s muscles are used only to the extent necessary for each action they perform.
A．One improves muscular action consciously.
B．One performs simple actions without working.
C．One always knows what his muscles are doing.
D．One’s muscles are used only to the extent necessary for each action they perform.
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