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成考高起点英语强化练习题及答案(10)_第2页

来源:考试网  [ 2015年12月14日 ]  【

  The entire procedure could take from three to five years to complete.

  "The nuclear transfer of one species to another is not easy, and the lack of available panda eggs could be a major problem," Kraemer believes. "They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it's difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort," adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.

  "They are trying to do something that's never been done, and this is very similar to our work in Noah's Ark. We're both trying to save animals that face extinction. I certainly appreciate their effort and there's a lot we can learn from what they are attempting to do. The cooperation between us is very much needed."

  13. The aim of "Noah's Ark" project is to .

  A. make efforts to clone the endangered pandas B. save endangered animals from dying out

  C. collect DNA of endangered animals to study D. transfer the nuclear of one animal to another

  14. According to Professor Kraemer, .

  A. The long time lasting cloning research could be successful.

  B. The eggs transfers immediately result in having a baby.

  C. The lack of nuclear transfer could be a major problem to have new pandas.

  D. If species should die out, basic building blocks would heal them.

  15. The best title for the passage may be .

  A. China's Success in Pandas Cloning

  B. Helping Ways to Avoid Extinction

  C. Exploring the Possibility to Clone Pandas

  D. The Practice in Noah's Ark

  16. From the passage we know that .

  A. Kraemer and his team have succeeded in cloning a dog

  B. scientists try to implant a panda's egg into a rabbit

  C. about two thousand of species are to die out in a century

  D. Kraemer will work with Chinese scientists in clone researches

  BACD  CBAB

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