This passage chiefly discusses ______. Which of the following statements is NOT true?

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问题 This passage chiefly discusses ______.
Which of the following statements is NOT true?

选项 A、World population is increasing at a rate of 150 per minute.
B、Lower death rates also contribute to world population growth.
C、The population of Columbia has been doubling every year for 21 years.
D、The United States is usually doubling its population about every 87 years.

答案C

解析 事实判断题。根据第三段第一句World population is increasing at a rate of 9,000 per hour.可判断A世界人口每分钟增加150人正确;根据该段第二句This is not only due to higher birth rates,but to lower death rates as well.可判断B论断正确;而由第四段的Some countries,such as Columbia,Thailand,Morocco,Costa Rica,and the Philippines are doubling their populations about every twenty-one years可判断,哥伦比亚人口持续21年每年翻一番的论断混淆了事实,论断错误;美国人口每87年翻一番可根据第三段第二句The United States is doubling its population about every eighty-seven years一句判断为正确论断。
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