问题描述：
Nearly 50% of the Irap population,which is over 20 million,is under 15 years old.
请说明20 million是指Nearly 50% of the Irap population,还是the Irap population的全部.
那the only one of the people houweishenme用is?
请说明20 million是指Nearly 50% of the Irap population,还是the Irap population的全部.
那the only one of the people houweishenme用is?
问题解答：
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