单选题What is true about Dolly according to the text?AShe was a lonely sheep in the first place.BShe was manufactured out of the lab.CShe was cloned from the cell of a mature sheep.DShe was replaced by cloned piglets in terms of importance.
单选题
What is true about Dolly according to the text?
A
She was a lonely sheep in the first place.
B
She was manufactured out of the lab.
C
She was cloned from the cell of a mature sheep.
D
She was replaced by cloned piglets in terms of importance.
参考解析
解析：
细节理解题。根据题干中的名字定位到第一段首句“Dolly was once an awfully lonely sheep.” ，由此可知，多利曾经是一只孤单的绵羊，但并没交代是什么阶段，A选项中的in the first place意为“起初，首先”，与文意不符；该段第二句提到“…she was the only mammal ever to be manufactured from the cell of an adult donor”，即多利是唯一一只由原体提取的细胞培养而成的哺乳动物，不能推出它是完全依靠实验室制造出来的，故B选项错误；mature sleep是adult donor的同义转述，故C选项为正确答案；文章最后一句话提到“For the present，even a little new transplant material is a big improvement over what’s available…”，即即使是一个细微的新的移植物在已有的技术基础上都将是一个重大的进步，两者都体现了科技的进步，没有将其重要性进行比较，故D选项错误。
细节理解题。根据题干中的名字定位到第一段首句“Dolly was once an awfully lonely sheep.” ，由此可知，多利曾经是一只孤单的绵羊，但并没交代是什么阶段，A选项中的in the first place意为“起初，首先”，与文意不符；该段第二句提到“…she was the only mammal ever to be manufactured from the cell of an adult donor”，即多利是唯一一只由原体提取的细胞培养而成的哺乳动物，不能推出它是完全依靠实验室制造出来的，故B选项错误；mature sleep是adult donor的同义转述，故C选项为正确答案；文章最后一句话提到“For the present，even a little new transplant material is a big improvement over what’s available…”，即即使是一个细微的新的移植物在已有的技术基础上都将是一个重大的进步，两者都体现了科技的进步，没有将其重要性进行比较，故D选项错误。
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单选题She was（）what she had written so as to make the theme stand out more clearly.ArepairingBrevisingCremedyingDreforming
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问答题Practice 3 Dolly was no ordinary lamb. She was cloned from a single mammary cell of an adult ewe, overturning long- held scientific dogma that had declared such a thing biologically impossible. Her birth set off a race in laboratories around the world to duplicate the breakthrough and raised the specter of human cloning. A decade later, scientists are starting to come to grips with just how different Dolly was. Dozens of animals have been cloned since that first little lamb and it’s becoming increasingly clear that they are all, in one way or another, defective. It’s tempting to think of clones as perfect carbon copies of the original—down to every hair and quirk of temperament. It turns out, though, that there are various degrees of genetic replication. Not only are clones separated from the original template by time—-in Dolly’s case, six years—but they are also the product of an unnatural molecular mechanism that turns out not to be very good at making identical copies. But scientists see a role for cloning in treating human diseases—and perhaps someday conquering some of man’s most intractable conditions. It may be another 10 years or more before the approach yields anything safe and reliable enough to be used in real patients, and there is no guarantee that it will ever be successful. But nobody thought Dolly was possible until she made history that warm July night 10 years ago.
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单选题When she returned back by abroad, she told us all about her experience as an illegalimmigrantAbyBbackCfromDback from
单选题By no means _____ to her parents.Athis is the first time has she liedBthis is the first time does she tell a lieCis this the first time she has liedDis this the first time she was lying