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
When Louise Brown was born on 25 July 1978, she kicked off an era. The first "test tube baby" is a mother herself now, and she’s
When Louise Brown was born on 25 July 1978, she kicked off an era. The first "test tube baby" is a mother herself now, and she’s
admin
2013-02-24
27
问题
When Louise Brown was born on 25 July 1978, she kicked off an era. The first "test tube baby" is a mother herself now, and she’s been joined by millions of others born with the【S1】______of in vitro fertilization(体外受精), or IVF. Now specialists wonder whether people who were conceived by IVF are likely to be【S2】______.
"By and large, the kids are just fine. It’s not like the kids having【S3】______arms or heads," says Carmen Sapienza, a scientist at Temple University. But none is older than their early 30s, and the vast【S4】______are under the age of 20, so they haven’t had time for long-term health problems to show up.
One source of worry is that so many IVF babies have low birth weight. Children-conceived through IVF are more likely to【S5】______less than 2.5 kilograms than are babies conceived【S6】______. That could spell trouble ahead, because low-birth-weight babies often have long-term health problems. They’re more likely to be obese, to have diabetes(糖尿病)or other problems.
With that in mind, Sapienza and colleagues have looked at genes that are likely to play a role in such health problems. They found that certain DNA-patterns, which affect how genes are【S7】______, are different between IVF and non-IVF children. There’s no way to tell if that’s because of the【S8】______used to produce the IVF babies or whether the difference has something to do with the underlying infertility problem the parents had. It’s also【S9】______whether these gene-expression differences will translate into health differences. But it does suggest that children conceived by IVF are【S10】______on some level.
A)weigh B)technology C)help D)unsure E)unclear
F)naturally G)expressed H)procedure I)unique J)healthy
K)explained L)extra M)majority N)minority O)completely
【S2】
选项
答案
J
解析
此处应为形容词,作表语。下文讲的都是有关试管婴儿的健康问题,据此可知此处是讲专家关心这类小孩是否健康,healthy符合文意。
转载请注明原文地址:https://kaotiyun.com/show/Itu7777K
0
大学英语四级
相关试题推荐
Memoryisourmostimportantpossession.Withoutmemory,youwouldn’tknowwhoyouare.Youcouldn’tthinkaboutthepastorplan
Theholidaysareatimeforeating:piesatThanksgiving,chocolatesforAdventandoverflowinggiftbasketsofcookiesandcand
A、Medicine.B、Braincells.C、TheInternet.D、Humanorgans.A短文中提到在科技变化的讨论中,因特网成为焦点,说话者用But转折提出自己的观点:Butthechangeinmedicinec
WhySmallCompaniesWillWininThisEconomyIjustheardastoryfromaclientthat’shardtobelievebuttrue.Inthe
ImaginebeingaslaveinancientRome.Nowrememberbeingone.Thesecondtask,unlikethefirst,iscrazy.If,asI’mguessing,
TheresidentsofCalifornia’sSantaMonicaBayhavesomerathernoisyneighbors—andthey’renothappyaboutit.Thatistheconc
A、ThewomanwillforgiveJennyforbeinglate.B、ThewomanisusuallylateforadatelikeJenny.C、Thewoman’stalkwithJenny
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashugeandtheworkwasdifficult.Hundredsofyoung
Asweturnedthecornerofthehighway,abeautifullakecame______view.
A、Becausenaturewantsthemtolookbeautiful.B、Becausetheyaregoingtofall.C、Becausetherearefewerdaylighthoursinaut
随机试题
奴隶社会和封建社会的法制()。
下列关于测绘资质年度注册时间的说法,不正确的是()。
背景某施工单位承建两栋十五层的框架结构工程。合同约定:①钢筋由建设单位供应;②工程质量保修按国务院279号令执行。开工前施工单位编制了单位工程施工组织设计,并通过审批。施工过程中,发生下列事件:事件一:建设单位按照施工单位提出
甲公司采用分期收款方式销售商品给乙公司,1月10日发出商品1000件,价款总计500万元,销售成本率为80%,增值税税率为17%。合同约定当日支付40%的合同价款,余款分3年于每年12月31日支付,该笔价款的公允价值是450万元。假定甲公司在合同签订当日
A公司2007年12月31日资产负债表中有关项目账面价值及其计税基础如下:交易性金融资产账面价值为1500万元,计税基础为1000万元;预计负债账面价值为100万元,计税基础为0万元;除上述项目外,该企业其他资产、负债的账面价值与其计税基础不存在差异,且递
若某一经济的价格水平2005年为107.9,2006年为111.5,2007年为114.5。问2006年和2007年通货膨胀率各是多少?若人们对2008年的通货膨胀率预期是按前两年通货膨胀率的算术平均来形成。设2008年的利率为6%,问该年的实际利率为多少
《刑法》第384条规定:国家工作人员利用职务上的便利,挪用公款归个人使用,进行非法活动的,或者挪用公款数额较大、进行营利性活动的,或者挪用公款数额较大、超过3个月未归还的,是挪用公款罪……试分析挪用公款罪的构成特征。
Everyindividualpossessesauniquequalitythatdifferentiateshimorherfromotherpeople.Whetheritisacharmingpersonali
系统为了管理文件,设立了专门的数据结构—文件控制块(FCB)。FCB是在执行下列哪一个系统调用时建立的?
有以下程序#includevoidmain(){intc=0,k;for(k=1;k<3;k++)switch(k){default:c+=k;
最新回复
(
0
)