单项选择题

A．Eating more fresh vegetables and fruits.
B．Taking pills of vitamins and trace elements.
C．Alternating work with rest.
D．Doing regular exercise.
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单项选择题
A．12 weeks.B．6 months.C．8 months.D．2 years.
A．12 weeks.
B．6 months.
C．8 months.
D．2 years.
单项选择题
A．Christ’s last supper.B．A popular film.C．A legendary story.D．A local custom.
A．Christ’s last supper.
B．A popular film.
C．A legendary story.
D．A local custom.
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