A population explosion will lead to ______. [br] ______, the world may have popu

游客2023-09-28  33

问题 A population explosion will lead to ______. [br] ______, the world may have population of 12 billion in a century.

选项 A、If man can live longer in the future
B、If the science of medicine is developing fast enough
C、If the population growth is not reduced
D、If the earth is able to provide a good life for more people

答案 C

解析 本题为细节题,信息点定位在最后一段第四句“Unless population growth is reduced, the world population may reach 12 billion in a century.”,此处Unless相当于if not,因此选C。
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