首页
登录
职称英语
[originaltext] Make millions with no work! Lose 5 kg overnight! Clear your c
[originaltext] Make millions with no work! Lose 5 kg overnight! Clear your c
游客
2024-02-18
3
管理
问题
Make millions with no work! Lose 5 kg overnight! Clear your credit history! The secrets to getting hot girls! Get out of debt!
Junk email messages like these, also known as spam, are familiar to anyone with an email account. On average, each email user received 1,300 spam messages last year, and that number is expected to increase to 3,900 by the year 2007.
Junk mail is nothing new. For years, marketing groups have collected consumer information, including addresses and phone numbers, and sold them as lists to interested advertisers. But with junk mail, the high cost of mailing packages to large groups of people kept it down to a manageable level. But with email, anyone With a computer and Internet connection can now send messages around the world for free.
But it’s the people who receive spam who wind up paying. It is estimated that spam costs companies millions of dollars every year due to wasted time, connection costs and lost emails.
A British study of how diet affects the health of new mothers and their babies produced the surprise finding that vegetarian women are more likely to have girls, one of the report’s authors said yesterday.
In what is thought to be the first study of its kind, researchers at Nottingham University in central England found significant differences in the sex of babies born to vegetarian and meat and fish-eating women. They were examining the health conditions in vegetarian and non-vegetarian mothers, looking at things like hemoglobin levels, which show how much iron the mother has in her blood, and birth weights.
Altogether 5,942 pregnant women were involved in the study when they were booked in Nottingham’s City Hospital during 2001. According to the researchers, vegetarian mothers were defined as pregnant women who avoided meat and fish. Nearly five percent were vegetarian among them, a total of more than 250 women.
The birth ratio in Britain is that for every 106 boys born there are 100 girls, that’s pretty constant. In their sample group of vegetarians there were 81.5 boys born for every 100 girls.
To further test their surprise findings, they increased the sample number to what scientists called a "statistically significant" level. The study was extended for a further six months so that the sex of more babies could be looked at. The results, covering around 150 more vegetarian women, were" just about exactly the same".
The study also found that vegetarian mothers were less likely to smoke during pregnancy -- 10 percent did so, compared with 20 percent of meat-eaters.
选项
A、Vegetarian women are more likely to have girls.
B、Non-vegetarian women are more likely to have girls.
C、Vegetarian women are more likely to have boys.
D、Vegetarian women are more likely to smoke during pregnancy.
答案
A
解析
短文开头第一句A British study…produced the surprise finding that vegetarian women are more likely to have girls,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3461712.html
相关试题推荐
[originaltext](32)Manyanimalsrecognizetheirfoodbecausetheyseeit.So
[originaltext](32)Manyanimalsrecognizetheirfoodbecausetheyseeit.So
[originaltext]Oldagemaynotsoundexciting.Butrecentfindingsoffergoo
[originaltext](26)Womenarejoiningtogetherallovertheworldtomarkth
[originaltext](26)Womenarejoiningtogetherallovertheworldtomarkth
[originaltext](26)Womenarejoiningtogetherallovertheworldtomarkth
[originaltext]W:Hello,sir.WhatcanIdoforyou?M:Hi,Iboughtthiscasset
[originaltext]W:Hey,Mark,couldyoutellmeaboutthefirstjobyoueverhad?
[originaltext]M:Lookatallthesecreamsinyourbathroom.Doyoureallyexpec
[originaltext]M:Lookatallthesecreamsinyourbathroom.Doyoureallyexpec
随机试题
TheTruthaboutLyingRickyGervais’snewfilm,The
TheValueofWritingWell[A]It’sthattimeofyearagain
在拨打火警电话向国家综合性消防救援机构报火警时,不是必须详细报告的是()。A.
软件测试方法可分为白盒测试法和黑盒测试法。黑盒测试法可以发现的软件问题包含()
周先生,45岁,企业主管,身高175Cm体重95kg,血压135/85mmHg。
激动剂的特点是()。A:对受体有亲和力,无内在活性 B:对受体有亲和力,有内
相继刺激落在前次收缩的收缩期内引起的复合收缩称为()A.单收缩 B.不完全
(一)导入新课 教师通过多媒体展示网站,让学生观察网站的界面,引导学生回忆上节课建立的站点,然后提问,“既然上节课我们对于网站实现的基本过程已经有所了解,对于
某女,35岁。头身困重,脘腹胀满,食纳减少,便溏稀薄,带下色白;舌淡红苔白腻,脉
根据我国《贷款通则》,关于借款人资格、权利、义务及限制性要求的说法,正确的有(
最新回复
(
0
)