首页
登录
职称英语
The idea of test-tube babies may make you either delighted at the wonders of
The idea of test-tube babies may make you either delighted at the wonders of
游客
2025-01-23
10
管理
问题
The idea of test-tube babies may make you either delighted at the wonders of modem medicine or irritated while considering the moral, or legal, or technological implications of starting life in a laboratory. But if you’ve ever been pregnant yourself, one thing is certain: You wonder what it’s like to carry a test-tube baby. Are these pregnancies normal? Are the babies normal?
The earliest answers come from Australia, where a group of medical experts at the Queen Victoria Medical Center in Melbourne have taken a look at the continent’s first nine successful
invitro
pregnancies. The Australians report that the pregnancies themselves seemed to have proceeded according to plan, but at birth some unusual trends did show up. Seven of the nine babies turned out to be girls. Six of the nine were delivered by Caesarean section. And one baby, a twin, was born with a serious heart defect and a few days later developed life-threatening problems.
What does it all mean? Even the doctors don’t know for sure, because the numbers are so small. The proportion of girls to boys is high, but until there are many more test-tube babies no one will know whether that’s something that just happened to be like that or something special that happens when egg meets sperm in a test tube instead of a fallopian tube. The same thing is true of the single heart defect. It usually shows up in only 15 out of 60,000 births in that part of Australia, but the fact that it occurred in one out of nine test-tube babies does not necessarily mean that they are at special risk. One thing the doctors can explain is the high number of Caesareans. Most of the mothers were older, had long histories of fertility problems and in some cases had had surgery on the fallopian tubes, all of which made them likely candidates for Caesareans anyway.
The Australian researchers report that they are quite encouraged. All the babies are now making normal progress, even the twin with the birth defects. [br] What concern will the test-tube baby raise according to the passage?
选项
A、Whether the pregnancies of test-tube babies would be normal.
B、Whether the test-tube babies would be encouraged.
C、Why the proportion of defected babies is so high.
D、Why the number of Caesareans is so high.
答案
A
解析
参看第一段最后一行的Are these pregnancies normal? Are the babies normal?
转载请注明原文地址:https://tihaiku.com/zcyy/3925987.html
相关试题推荐
当事人一方违约后,对方应当采取措施防止损失的扩大,没有采取适当措施致使损失扩大的,不得就扩大的损失要求赔偿。Aftereitherpartyviolate
它已经推出了一些既不依赖英国宽松的税收政策,也不依赖海外富豪的产品。(neither…nor…)Italreadyofferssomeproducts
Theideaoftest-tubebabiesmaymakeyoueitherdelightedatthewondersof
Theideaoftest-tubebabiesmaymakeyoueitherdelightedatthewondersof
Theideaoftest-tubebabiesmaymakeyoueitherdelightedatthewondersof
Evidencecameupwhichspecificspeechsoundsarerecognizedbybabiesasyoung
KingdomofWonders,______in1995inFremont,Calif.,becameanindustrylegendf
Wearedelightedtoestablishbusinessrelationshipwithyou.A、beestablishedB、
Evidencecameupwhichspecificspeechsoundsarerecognizedbybabiesasyoung
Virtuallyeverytheoryhasbeenconcernedwitheitherthestructureorthefunct
随机试题
Howmuchpaindoanimalsfeel?Thisisaquestionwhichhascausedendlessc
Wehaverevisedtheproject______therecentdevelopments.A、inlightofB、byvirt
Wheredidthespeakerliveforfiveyears?[br][originaltext]Forfiveyear
BookerT.Washington,aneducationalleader,workedthroughoutthelifetimetoi
Whenyouthinkaboutthegrowthofhumanpopulationoverthelastcenturyor
下列关于银行承兑汇票的表述,不正确的是()。A.贴现业务就是向企业提供短期贷款
办理执业医师资格证和注册在什么机构?()A.所在地县级以上人民政府卫生行政
社会工作者在小组讨论时使用“头脑风暴法”时,运用的主持技巧是()。A.鼓励的技
商业银行建立风险管理部门应遵循的原则有()。A:风险管理部门应具备有限的风险管理
男性,40岁,中上腹饥饿性隐痛反复发作10年,伴反酸、暧气,进食和服用抑酸剂
最新回复
(
0
)