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题型：单选题题类：常考题难易度：普通

高中英语->牛津译林版->高二上册->模块5Unit 3 Science versus nature

As we all know, ____________ cloning is the creation of cells or the whole animals using DNA from ____________ single “parent”.

A、the; a B、a; a C、/; a D、/; the

举一反三

--How about _______ Christmas evening party?
--I should say it was _______ success.

I like reading books about ________ story of Sang Lan who has ________ positive attitude towards life.

We urge ________ extreme caution in ________ use of this medicine, which has not been officially approved yet.

A study shows that eating one egg _______ day does not appear to raise ________ risk of heart attack.

In 1860s, the Italian archaeologist Giuseppe Fiorelli was made director of the Pompeii dig.

The firm was badly in need of a manager who has good knowledge of French.

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