赞题库-背景图

单项选择题

A century ago, how many lived to, or past 100, within a population of 5 million

A．5,000,000.
B．10,000.
C．50,000.
D．1,000.

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热门试题

单项选择题Stephen Leacock could be described as all the following EXCEPT ______.

A．careless about his appearance
B．witty and eloquent
C．an inspiring professor
D．an absent-minded person

单项选择题The author seems to suggest that ______.

A．the aged should not go to the nursing home
B．we can lengthen our lives through high-tech medicine
C．centenarians die faster than those who are younger
D．the ever-growing segment of centenarians has caused concern