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医学
The idea of test-tube babies may make you either delighted at the wonders of modern medicine or irritated while considering the
The idea of test-tube babies may make you either delighted at the wonders of modern medicine or irritated while considering the
admin
2013-12-14
77
问题
The idea of test-tube babies may make you either delighted at the wonders of modern 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 in vitro pregnancies. The Australians report that the pregnancies themselves seemed to proceed 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. Undone 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 none 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.
What would people be most concerned about according to the author?
选项
A、Whether the test-tube babies would be legally accepted by society.
B、Whether the test-tube babies would be normal from pregnancy to birth.
C、Whether modern medicine is advanced enough for test-tube babies’ delivery.
D、Whether there would be always more girls than boys out of the test-tube babies.
答案
B
解析
细节题。根据第一段最后两句话作者通过问句的形式提出了人们关心的问题:Are thesepregnancies normal?Are the babies normal?(这些受孕正常吗?这些试管婴儿正常吗?)换句话说也就是人们关心这些试管婴儿从怀孕到出生是否都正常。
转载请注明原文地址:https://kaotiyun.com/show/T4U3777K
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