A、
It can help people cure diseases.
B、
It can make people feel happy.
C、
It can help people lose weight.
D、
It can help to protect heart disease.
【正确答案】
D
【答案解析】
A、
One year.
B、
Three years.
C、
Four years.
D、
Thirty years.
【正确答案】
B
【答案解析】
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