Scientistshaveachievedamajorin

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Scientists have achieved a major ___ in the search for a cure for cancer, ____ is good news for those who suffer from cancer.

A．breakthrough; what	B．breakdown; which
C．breakup; that	D．breakthrough; which

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I will help you ________ I don’t sleep for a night.

A．once	B．as if
C．even if	D．ever since

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He devoted his whole life ________ animals in danger.

A．protecting	B．being protected
C．to protect	D．to protecting

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A．as usual	B．no longer
C．on purpose	D．as a matter of fact

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A．be applied to solve	B．be applied to solving
C．apply to solve	D．apply to solving

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Little_____ about A-H1N1 so far, so there is no doubt that many people are afraid when talking about the disease.

A．did scientist know	B．scientists have known
C．have scientists known	D．had scientists known

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名词+of 表示数量非限制性定语从句

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