填空题

The article tells about population changes around the world and the problems associated.

【参考答案】

Y

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填空题

Within the next 50 years, population in Africa will rise to 2,000 million, and 1,000 million in South Asia.

问答题

目前，在社会上有这样一种说法，文凭越高越好2．而有些人则认为文凭不等于知识3．你的观点 Knowledge and Diploma