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_______cloning human embryos is not lega...

_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.

A. While      B. When     C. Since      D. if only

 

A 【解析】 试题分析:考查连词:A. While虽然,B. When当…时候,C. Since既然D. if only 但愿,句意: 虽然克隆人类胚胎是违法的,但一些科学家已经在努力推进研究为了制造克隆的人类婴儿。选A。 考点:考查连词
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首先,请阅读下列应用文。

A. Share Flat

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Helen 27756403 or 25717749

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For lower saturated fat, corn oil and olive oil can’t beat Crisco Oil.

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