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【单选题】
2010年生理学或医学奖颁给了试管婴儿技术的奠基者·爱德华兹。自20世纪70年代末以来，试管婴儿技术已让400多万名新生命来到这个世界上。下列关于人类试管婴儿技术的说法，错误的是 [ ]A.
人类试管婴儿技术属于有性生殖
B.
体外受精后的胚胎必须经过体外培养后进行胚胎移植
C.
胚胎移植时要考虑到代孕女性的生理周期问题
D.
试管婴儿早期胚胎的代孕女性必须是卵细胞的供体
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举一反三
【简答题】A．The difference of meaning. B．The difference of pronunciation. C．The difference of some vocabulary. D．The extent of the difference.
【单选题】What is the difference between 'salad bowls' and 'melting pot'?
A.
The difference between rationalism and materialism
B.
the former represents disintegration and the latter represents integration
C.
the former emphasizes differences and individual identity, the latter emphasizes common humanity
D.
The former is for Enlightenment and the latter is opposed to Enlightenment
【简答题】A.The difference between a job description and job specification. B.The difference between what is taught, and how it is taught. C.The difference between the costs and the quality of the programme. D....
【简答题】举例说明微生物与植物的关系
【简答题】A．The difference between a job description and a job specification. B．The difference between what is taught and how it is taught. C．The difference between the costs and the quality of the programme. D...
【简答题】举例说明微生物与植物之间的共生关系。
【单选题】Among the following four cities, the difference between the afternoon high and the evening low is smallest in ______.
A.
Kansas City
B.
Miami
C.
Atlanta
D.
Seattle
【单选题】The difference threshold is?
A.
The difference between the two stimuli.
B.
The difference between two stimulis required for detection 50% of the time
C.
The difference between two stimuli required for detection 25% of the time
D.
There is no such term
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