首页
登录
职称英语
There are about 105 males born for every 100 females, but this【B1】______ dro
There are about 105 males born for every 100 females, but this【B1】______ dro
游客
2024-06-02
1
管理
问题
There are about 105 males born for every 100 females, but this【B1】______ drops to near balance at the age of maturity, and among 70-year olds there are twice as many women as men. But the great universal of male【B2】______ is being changed. Now, boy babies【B3】______ almost as well as girls do. Fifty years ago, the chance of a baby(particularly a boy baby)surviving depended on its weight. A kilogram too light or too heavy【B4】______ almost certain death. Today it makes almost no【B5】______ . Since much of the variation is due to genes, one more agent of evolution has gone.
There is another way to【B6】______ evolutionary suicide: stay alive, but have fewer children. Few people are as【B7】______ as in the past. Nowadays the number of births, like the age of death, has become 【B8】______ .Again,【B9】______ .
For us, this means that evolution is over; the biological Utopia has arrived. Strangely, it has involved little physical change. No other species fills so many places in nature.【B10】______ . We did not evolve, because machines and society did it for us. Darwin had a phrase to describe those ignorant of evolution: they "look at an organic being as a savage looks at a ship, as at something wholly beyond his Comprehension." No doubt we will re- member a 20th century way of life beyond comprehension for its ugliness.【B11】______ . [br] 【B4】
选项
答案
meant
解析
所填词应在句中作谓语。mean表示“意味着”,前句中的时间状语Fifty years ago决定此处须用一般过去时,mean的过去式为meant。
转载请注明原文地址:https://tihaiku.com/zcyy/3616828.html
相关试题推荐
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dro
Thereareabout105malesbornforevery100females,butthis【B1】______dr
Thereareabout105malesbornforevery100females,butthis【B1】______dr
Thereareabout105malesbornforevery100females,butthis【B1】______dr
随机试题
[originaltext]Intheearlydaysofrailroadshorsespulledthetrains.The
TheactofGooglingoneselfhasbecomethedigitalage’spremiereguiltyple
(2021年真题)A公司是一家生产和销售安保产品的企业,近年来,公司所处行业竞争
根据原信息产业部发布的关于发布《计算机信息系统集成资质等级评定条件(修订版)》的
“虽训练犹未充足,装备犹未齐备,外人以为不能支持一周的阵地,竟能抵抗十周。不只军
某岛屿上的居民与该岛上的草、羊、兔和狐构成的食物网如图8。由于居民大量猎杀狐,导
通过多个营销渠道将房地产产品销售到同一目标市场的营销渠道类型是()。A.多重分
2010年,江苏省全年粮食总产量达3235.1万吨,比上年增加5万吨;其中夏粮
A.8% B.10% C.20% D.30%三级综合医院药学部药学人员中具
集中式供水的卫生监督的内容不包括A.由于已多次清洗设备,不必检验水质 B.施工
最新回复
(
0
)