单项选择题

A．Their self-reported health records and mass index.
B．Their marital and work history.
C．Whether they have children or not.
D．All-above mentioned.
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单项选择题
A．A mechanic.B．A repairman.C．A manager.D．A salesman.
A．A mechanic.
B．A repairman.
C．A manager.
D．A salesman.
单项选择题
A．The man.B．The woman.C．They pay for their own dinner respectively.D．Someone else.
A．The man.
B．The woman.
C．They pay for their own dinner respectively.
D．Someone else.
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