A-A+
According to the passage what helps to explai
问题详情
According to the passage, what helps to explain why the population problem has come on "all of a sudden"？
A．The penny which doubles itself every day for one month.
B．The time span of at least two million years in human history.
C．An illustration of the exponential growth rate given by the author.
D．The large amount of money you would luckily make after the fourth week.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：本题是一道具体细节题。问按照文章内容，什么可以帮助解释人口问题突然出现的原因。文章第一段和第二段的第一句话指出，人口趋向于以指数比率增长。这就意味着它是以累进方式倍增。可以给这种增长率打个比方，如果拿出1美分，以一个月为期，每天加倍，一周以后，仅增为64美分，但是4周以后，便超过100万美元了。这就帮助解释了为什么会突然冒出那么多人口。因此，本题的正确答案应是C。
