首页
登录
职称英语
One of medicine’s fundamental beliefs about pregnancy and the development o
One of medicine’s fundamental beliefs about pregnancy and the development o
游客
2023-11-22
54
管理
问题
One of medicine’s fundamental beliefs about pregnancy and the development of the human fetus has been challenged. Until recently, it was thought that the fetus was a parasite capable of extracting all the nutrients it needed from the mother. It is now realized that adequate nutrition during the entire course of the pregnancy is necessary for proper fetal development.
In early pregnancy, certain changes occur in the mother’s gastrointestinal tract, resulting in more efficient absorption of specific nutrients, such as iron and calcium. Furthermore, the maternal blood supply increases, so that nutrients can be transported via the uterine and placental blood systems: If the mother is undernourished, this "lifeline" to the fetus will be inadequately developed. Finally, fat is accumulated within the body to store the energy necessary for lactation (milk production), This preparation for lactation is so important that if the mother is inadequately nourished, it will take place even at the expense of fetal growth. It is a logical developmental occurrence, since in the natural world, no infant can survive without successful breastfeeding, and thus fetal growth is less of a priority. [br] According to the passage, what traditional belief has been questioned?
选项
A、The fetus grows at the expense of the mother.
B、Good nutrition is necessary throughout pregnancy.
C、The most important changes occur in early pregnancy.
D、The mother’s nourishment is more important than the baby’s.
答案
A
解析
由题干可知,本题的答案应在文章的开头。第一段第二句中的“Until recently”和一般过去时的使用表明,该句表达的内容正是过去传统的观点,即“the fetus was a parasite capable of extracting all the nutrients it needed from the mother”。就是说The fetus lives on the mother and gets its nutrients from the mother。A项中的“at the expen
转载请注明原文地址:https://tihaiku.com/zcyy/3208675.html
相关试题推荐
Accordingtothespeaker,whatwerethebeliefsoftheGreekphilosophersbased
Accordingtothespeaker,whatwerethebeliefsoftheGreekphilosophersbased
Whatdevelopmentcausedadeclineintheuseofrailroads?[br][originaltext]
Whatdevelopmentcausedadeclineintheuseofrailroads?[br][originaltext]
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstat
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstat
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstat
Thereweretwowidelydivergentinfluencesontheearlydevelopmentofstat
Oneofmedicine’sfundamentalbeliefsaboutpregnancyandthedevelopmento
Oneofmedicine’sfundamentalbeliefsaboutpregnancyandthedevelopmento
随机试题
Thevastprojecthasbeencomparedwiththe【B1】______oftheEgyptianPyramidsor
【B1】[br]【B20】A、pleasureB、propertyC、interestsD、opportunitiesA此句照应了文章首句。商人变得
项目绩效评审的主要目标是()。A.根据项目的基准计划来决定完成该项目需要多少资
男性,在聚餐饮酒后3小时于凌晨出现头痛,头晕,乏力,意识模糊,呼吸急促,眼前有闪
某男子因车祸受重伤被送到医院急救,因没带押金,医生拒绝为其办理住院手续,当病人家
共用题干 张某欲购买一套住房,委托甲房地产经纪机构(以下简称甲机构)寻找房源并
下列关于卖方代理的表述中,错误的是()。(2009年真题)A.代理方要帮助委
Thechangeinthatvillagewasmiraculou
(2018年真题)下列占用耕地的情形中,应减征耕地占用税的是()。A.医院占用
关于效力待定合同的说法,正确的是()。A.善意相对人不可撤销效力待定合同 B
最新回复
(
0
)