首页
登录
职称英语
Fifty years from now the world’s population will be declining, with no end i
Fifty years from now the world’s population will be declining, with no end i
游客
2023-07-24
69
管理
问题
Fifty years from now the world’s population will be declining, with no end in【B1】______Unless people’s values change【B2】______several centuries from now there could be fewer people living in the entire world than live in the United States today. The big【B3】______of the past twenty years is that in not one country did fertility stop【B4】______when it reached the【B5】______rate--2.1 children per woman. In Italy, for example, the rate has fallen to 1.2. In Western Europe as a whole and in Japan it is down to 1.5. The evidence now【B6】______that within fifty years or so world population will【B7】______at about eight billion before starting a【B8】______rapid decline.【B9】______.
many people still fear that it will keep "exploding" until there are too many people for the earth to sup- port. But【B10】______World population was growing by two percent a year in the 1960s; the rate is now down to one percent a year, and【B11】______This view is coming to be widely accepted among population experts, even as the public continues to focus on the threat of uncontrolled population growth. [br] 【B5】
选项
答案
replacement
解析
名词,这句话的意思是出牛率达到某一水平后继续下降就会出现问题,这肯定是保持人口基数的水平,即replacement rate。
转载请注明原文地址:https://tihaiku.com/zcyy/2865306.html
相关试题推荐
__________(据估计到2010年),thepopulationoftheworldwillhavereached7billion.
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
随机试题
November11,1918wasthedaywhentheFirstWorldWarwasover.Weary(疲劳的)v
对湿热不稳定且可压性差的药物,宜采用A.结晶压片 B.粉末直接压片 C.干法
甲集团为国有大型钢铁企业,近年来,国内钢铁行业产能过剩,国际铁矿石价格居高不下,
人体实验的道德原则中维护受试者权益是指()A.人体实验的危险不能超过实验带来的
档案法的优点是()。 (A)对研究对象的心理干扰小.(B)有统计资料可.查
2009年,很多高中毕业生由于对大学毕业以后的就业前景感到担忧,放弃了参加高考,
(2019年真题)甲公司为增值税一般纳税人,主要从事小汽车生产和销售业务,201
根据《国家危险废物名录》,符合列入名录危险废物范围的原则规定的是( )。A.医
老年急性阑尾炎的临床特点是A:阑尾容易出血、坏死 B:腹痛、恶心明显 C:常
女性,46岁,主诉排便时阴道脱出一块状物,检查时用力时阴道前壁脱出,宫颈外口露于
最新回复
(
0
)