单项选择题

In the Caucasus region of the Soviet Union______.

A．many people can live up to more than 100 years
B．many old people live very lonely
C．many people from other mountainous region come to settle here
D．many older persons become weak and ill in their 60s and 70s for no reason

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热门试题

单项选择题

This passage primarily describes______.

A．Mr. Mamedov' s life
B．factors that contribute people to a long life
C．suggestions for how you can live a long life
D．hard physical work is a good way to live a long life

单项选择题

All the long lived people in the author's research don' t______.

A．come from mountainous regions
B．live and work at far higher elevations above sea levels
C．come from the modem industrial society
D．have grand children and great grand children