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
2016-08-30
81
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 pronounced 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 a fetus is inextricably 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. 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 little as one drink of alcohol can produce significant, irreversible damage to 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.
According to the passage, how is alcohol finally returned to the mother’ s system?
选项
A、It is carried through the bloodstream.
B、It is transferred across the placenta.
C、It is expelled by the fetus’ s liver.
D、It is not completely returned.
答案
B
解析
细节判断题。由定位句中“by passing across the placenta”可知,酒精由母体进入胎儿体内的通道是胎盘。
转载请注明原文地址:https://kaotiyun.com/show/KSRO777K
0
成人本科学位英语
相关试题推荐
Advertisingfalls(into)two(main)(category):consumeradvertising(and)tradeadvertising.
Stuartstopped(towrite)hisletter(because)hehadto(leave)(forthehospital).
Peoplealwaysshakehandsandsay"Howdoyoudo?"when______toeachother.
Forthispart,youareallowedthirtyminutestowriteacompositiononthetopic"TheImportantofSelf-confidence".Youshould
George:You’vegivenusawonderfulChinesedinner,Mrs.Wang.Mrs.Wang:________
Bob:It’slate.Ihavetosaygoodbye.Mrs.Black:______
Inasecondhandbookshop,Billycameacrossabookwhichhethoughtwascertainlya______edition.
Whenhesawmepassingby,hestoppedtalkingwithme.
Areyouplanningavacation?Ifyoulikehotandextremelydrysummers,gotoPhoenix,Arizona.Forhottemperaturesbutlotsof
Withoutproperplanning,tourismcancauseproblems.Forexample,toomanytouristscancrowdpublicplacesthatarealsoenjoye
随机试题
怎样释读、分析数控加工中心典型液压系统?
然后知吾向之未始游,________。(柳宗元《始得西山宴游记》)
A.从下颌中切牙、侧切牙切嵴,尖牙的尖,第一、二前磨牙颊尖,第一、二磨牙近中颊尖、远中颊尖连成的一条向上凹的线称为B.连接上颌中切牙、侧切牙切嵴,尖牙的尖,第一、二前磨牙颊尖,第一、二磨牙近中颊尖、远中颊尖联成的一条向下凸的线称为C.连接一侧磨牙的颊尖
当螺旋CT的X线管旋转为360°/秒,床速为12mm/秒,准直器为8mm时,其pitch(螺矩)值为:
关于抗消化性溃疡药A、组胺H2受体阻断剂B、抗酸药C、硫糖铝D、西咪替丁E、铋剂须在餐前服用且不宜与牛奶、抗酸药同服的是
关于建筑防水的说法,正确的有()。
以下需要基金托管人出具托管人报告的是()。[2017年4月真题]Ⅰ.基金季度报告Ⅱ.基金临时报告Ⅲ.基金半年度报告Ⅳ.基金年度报告
相对于传统的工程成本管理难题,BIM技术的成本管理特点有()。
人生之路,考试重重。面临即将到来的考试的巨大压力,很多人吃不好、睡不着、难以精神抖擞地全力备考。“双百全优”中药冲剂,集中国传统医学之精华,镇静您的精神,焕发您的精力,去除长时间学习的疲倦,让您吃好睡好,以崭新的面貌走上考场。以下哪一项在上述的广告宣传中没
手对于()相当于()对于碗柜
最新回复
(
0
)