单项选择题

Which of the following statements is TRUE

A．Young people need more exercise than other people.
B．One can live longer than others if one has more exercise when one is young.
C．Adults need more exercise than children.
D．People can prolong their life span if they keep exercising.
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单项选择题
Bicycling and jogging are good exercise to train one’s heart because they______.
A．require a lot of strength
B．are more interesting
C．can reduce one’s weight
D．bring one’s heartbeat to at least 120 a minute
单项选择题
Which of the following is used to support the claim that the emperor died of a natural death
A．He had a good appetite for various kinds of food.
B．He had a habit of drinking little and mixed it with water.
C．He had lost 11 kilos during the last five months of his life.
D．He was deported to the island of St Helena.
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