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哦,明白了,还有几道题不太明白:6. from 1982 to 1990, what is the percent change in the number of the people who take part in the medical care programme?
(1) in 1982 the percent is 80%
(2) in 1990 the percent is 90%(具体数字不准, 关键是理解题意,我选了C, )
我认为应该选E吧,the number并不知道呀。
12.有三个正整数X, Y,Z, 问Y是不是等于中数的值?
(1) X |
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