Thehugeincreaseinworldpopulationand

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  Thehugeincreaseinworldpopulationandproduction()。
A.hasmadetheworldaworseplacetolivein
B.hashadapositiveinfluenceontheenvironment
C.hasmadetheworldanunpleasantplacetolivein
D.hasnotgreatlyaffectedtheenvironment

参考答案:

答案:  D