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
2024-02-02
7
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] 【C6】
选项
答案
F
解析
此处应为副词,修饰conceived。此空所在句用more likely...than…表比较,从语义上看,与through IVF(通过体外受精而怀孕)作比较的应该是“自然怀孕”,不难选择naturally。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3415920.html
相关试题推荐
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
[originaltext]Evenifyou’vekickedoffafitnessroutineandyou’rechoosi
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
随机试题
[originaltext]M:Iwastryingtothinkofcomparisons,butIwashavingareall
Manytheoriesconcerningthecausesofjuveniledelinquencyfocuseitheron
华生曾用白兔对一个9个月大的孩子做过一项恐惧形成实验,实验后这个孩子一看见白兔就
初期复苏的关键是<P>A.开放气道,维持气道通畅<br>B.人工呼吸<br>C.
在房地产项目可行性研究阶段,对房屋开发费的估算中用到的估算公式:直接费=每平方米
基于客户委托,期货公司及其从业人员向客户提供风险管理顾问、研究分析、交易咨询等服
甲市某日化企业为增值税一般纳税人,2021年9月在甲市销售高档化妆品,取得含税销
(2020年真题)根据《关于生产和使用臭氧层破坏物质建设项目管理有关工作的通知》
有明显诱因急性起病,病前人格无缺陷,病程间断发作() A.精神分裂症预后较好的
最新回复
(
0
)