If the population of’ the earth goes on increasing at its present rate, when will we use up all the oil that drives our cars? I

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问题 If the population of’ the earth goes on increasing at its present rate, when will we use up all the oil that drives our cars?
In the long run, the most insoluble problem caused by population growth on earth will proba- bly be the lack of ______.

选项 A、food
B、space
C、oil
D、resources

答案B

解析 细节题。答案在文章第一段。从Even though scientists...somewhere else.可以看出,虽然可以发明新方法宋代替燃油,但却必须找到有广阔空间的其他地方。
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