首页
登录
职称英语
When Louise Brown was born on 25 July 1978, she kicked off an era. The first
When Louise Brown was born on 25 July 1978, she kicked off an era. The first
游客
2024-01-21
20
管理
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【C1】________ of in vitro fertilization (体外受精), or IVF. Now specialists wonder whether people who were conceived by IVF are likely to be【C2】________ .
"By and large, the kids are just fine. It’s not like the kids having【C3】________ arms or heads," says Carmen Sapienza, a scientist at Temple University. But none is older than their early 30s, and the vast 【C4】________ 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 【C5】________ less than 2.5 kilograms than are babies conceived 【C6】________ . 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 【C7】________ , are different between IVF and non-IVF children. There’s no way to tell if that’s because of the 【C8】________ 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 【C9】________ whether these gene-expression differences will translate into health differences. But it does suggest that children conceived by IVF are【C10】________ on some level.
A) weigh E) unclear I) unique M) majority
B) technology F) naturally J) healthy N) minority
C) help G) expressed K) explained O) completely
D) unsure H) procedure L) extra [br] 【C5】
选项
答案
A
解析
此处应为动词。根据空后的2.5 kilograms可知此处为“重”之义,weigh符合。
转载请注明原文地址:https://tihaiku.com/zcyy/3381840.html
相关试题推荐
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
随机试题
WhenFranklinD.RooseveltwaselectedPresidentoftheUnitedStatesin193
[originaltext]M:Today,we’veProfessorMcKayonourMorningTalkShow.Goodmo
Somemarriagesseemtocollapsesosuddenlythatyou’dneedacrystalballt
以下材料是某高中老师设计的单元课教材的第一课时的教案片段: Step1Wa
刘某,男,57岁。中风后经治遗留音暗失语,心悸,气短及腰膝酸软。证属A.肾阳不足
女婴,发育正常,开始认识母亲,见奶瓶表示喜悦的年龄是A、4个月 B、6个月
如母联断路器设有断口均压电容且母线电压互感器为电磁式的,为了避免拉开母联断路器后
某7度抗震设防的高层钢筋混凝土框架结构,抗震等级为二级,地上10层,柱混凝土强度
学习一种新材料时运用联想,假借意义,对记忆亦很有帮助,这种方法被称为(
男,22岁,高热1周应用抗生素治疗无效。胸骨压痛明显,肝脾肋下未触及。入院次日起
最新回复
(
0
)