首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
One of the most dangerous drugs for pregnant women to consume is alcohol. Because alcohol is delivered quickly into the blood an
One of the most dangerous drugs for pregnant women to consume is alcohol. Because alcohol is delivered quickly into the blood an
admin
2013-02-24
30
问题
One of the most dangerous drugs for pregnant women to consume is alcohol. Because alcohol is delivered quickly into the blood and passes quickly into the tissues and membranes, the human fetus (胎儿) is particularly vulnerable to its effects. In fact, the negative effects on a fetus are so evident that babies born after exposure to alcohol are said to be suffering from fetal alcohol syndrome.
As a pregnant woman drinks alcohol, the alcohol is passed into her bloodstream almost simultaneously. Moreover, because the bloodstream of the fetus is inseparably tied to that of the mother, the alcohol passes directly into the bloodstream of the fetus as well. And, what is more, the concentration of alcohol in the fetus is exactly the same as in the mother.
For the mother, this concentration is not a problem because her liver can remove one ounce of alcohol from her system per hour. However, the fetus’s liver is not completely developed (how developed it is depends on its stage of development). The rate at which it is able to eliminate the alcohol from the blood of the fetus is much slower. Eventually, the alcohol will be returned to the mother’s system by passing across the placenta (胎盘), but this process is slow. By the time this takes place, major neurological damage may have already occurred. Research has shown that as little as one drink of alcohol can produce significant, irreversible damage to the fetus.
Babies born after exposure to alcohol generally exhibit facial distortion, inability to concentrate, and difficulty in remembering. Simply speaking, it is imperative that pregnant women avoid alcohol.
What is the main topic of this reading?
选项
A、Women and alcohol addict.
B、Exposure to alcohol.
C、The fetus and alcohol.
D、Drinking mothers.
答案
C
解析
主旨题。本文主要讲述酒精对胎儿的影响。
转载请注明原文地址:https://kaotiyun.com/show/d3u7777K
0
大学英语四级
相关试题推荐
Thefallinthenumberofdeathsfromheartdiseasegenerally______(归因于日常饮食的改善)
Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【C1】______shouldbemade
WhySmallCompaniesWillWininThisEconomyIjustheardastoryfromaclientthat’shardtobelievebuttrue.Inthe
Morethanthree-quartersofthechildrenweinterviewedsaidthey’resometimesafraidtobehomealone.Ifyoudecideyourchild
Morethanthree-quartersofthechildrenweinterviewedsaidthey’resometimesafraidtobehomealone.Ifyoudecideyourchild
A、Shewilldoasthemansuggests.B、Sheisseriouslysick.C、Shewillnottravelbyplane.D、Shewillgotherebytrain.C语义推断题
A、Themanmightbeateacher.B、Thewomanfeelsthesameasthemanongettingupearly.C、Themanwillattendthemorningclass
TheresidentsofCalifornia’sSantaMonicaBayhavesomerathernoisyneighbors—andthey’renothappyaboutit.Thatistheconc
Ihavelearned,oftenthehardway,thatthereareafewsimplerulesabouthowtomakelifeeasierbothbeforeandafteryour【
A、Extremelygood.B、Notsomuchfun.C、Veryfoolish.D、Quitetedious.A女士和男士都曾在现场观看比赛,并觉得很精彩,比在电视机前看有趣多了,故选A。
随机试题
下列英文缩写的中文含义错误的是:()
患者,女,18岁,未婚。月经尚未初潮,体质虚弱,腰酸腿软,头晕目眩,舌红少苔,脉沉细尺弱。其治法是()
项目财务现金流量表是以项目为一独立系统,从()角度进行设置的。
直通疏散走道的房间疏散门至最近敞开楼梯间的距离,当房间位于两个楼梯间之间时,按规定减少();当房间位于袋形走道两侧或尽端时,按规定减少()。
在资本项目完全被政府所控制的情况下,货币政策与财政政策首先会影响()。
2005年3月14日,第十次全国人民代表大会第三次会议表决通过了《______》,促进了海峡两岸和平、稳定与发展。
我国多数企业完全缺乏“专利意识”,不懂得通过专利来保护自己的合法利益。中国专利局最近对500家大中型企业专利工作的一次调查结果表明,在科研或新产品规划时制订了专利计划的仅有26%。以下哪项为真,最能削弱上述论证?()
推动人类社会的发展是一个“动力系统”,其中()。
17thcenturysailingshipsweresmallandrolledheavilyinroughseas,somostofthepassengerswereseasick.(Passage2)
CrazeforCivilServiceExaminationsForthispart,youareallowed30minutestowriteashortessay.Youshouldstartyouress
最新回复
(
0
)