单项选择题

A．Their genetics.
B．Their size.
C．What they look like.
D．The amount of energy they need.
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单项选择题
A．Go traveling.B．Help each other.C．Go to work.D．Play games.
A．Go traveling.
B．Help each other.
C．Go to work.
D．Play games.
单项选择题
A．They are not beautiful at all.B．They are quite comfortable.C．They are too expensive.D．They deserve more money.
A．They are not beautiful at all.
B．They are quite comfortable.
C．They are too expensive.
D．They deserve more money.
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