WhichofthefollowingstatementsisNOTtr ue?
A)Worldpopulationisincreasingatarateof150perminute.
B)Lowerdeathratesalsocontr ibutetoworldpopulationgrowth.
C)ThepopulationofColumbiahasbeendoublingeveryyearfor21years.
D)TheUnitedStatesisusuallydoublingitspopulationaboutevery87years.
正确答案：C答案：C
[试题分析]事实判断题。
[详细解答]根据第三段第一句Worldpopulationisincreasingatarateof9,000perhour．可判断A世界人口每分钟增加150人正确；根据该段第二句Thisisnotonlyduetohigherbirthrates，buttolowerdeathratesaswell．可判断B论断正确；而由第四段的Somecountr ies，suchasColumbia，Thailand，Morocco，CostaRica，andthePhilippines．aredoublingtheirpopulationsabouteverytwenty-oneyears可判断，C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；D美国人口每87年翻一番可根据第三段第二句TheUnitedStatesisdoublingitspopulationabouteveryeighty-sevenyears一句判断为正确论断。因此，本题答案为C。
