The problem of population is mainly man-made. It is very important the actual population in the world is on the increase.

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问题 The problem of population is mainly man-made.
It is very important the actual population in the world is on the increase.

选项 A、Y
B、N
C、NG

答案B

解析 从第1段“It is not so much…”可以看出是错的。
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