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  3. The wavelengths of light and radio waves, unlike high energy gamma radiation, ar

The wavelengths of light and radio waves, unlike high energy gamma radiation, ar

游客2025-01-17  24
问题 The wavelengths of light and radio waves, unlike high energy gamma radiation, are much shorter. [br]  
Nuclear energy is released at the sun’s center as high energy gamma radiation, a form of electromagnetic radiation like light and radio waves, only of very much shorter wavelength.
As a super hero in her own right, Xena is a female piglet cloned from fetal-pig skin cells. She may prove to be more than the latest addition to the biotech clone farm. Because of similarities between porcine and human organs, the techniques that made Xena may eventually create a supply of genetically modified pig livers that would be acceptable to the human immune system.
选项 A、true
B、false
答案 A
解析 语义逻辑推理判断。原文认为“Because of similarities between porcine and human organs，the tech—niques that made Xena may eventually create a supply of genetically modified piglivers that would be acceptable to the human immune system．”即“鉴于猪和人的器官有相似性，创造了xena的技术必将创造出可以为人类免疫系统接受的转基因猪肝脏”，由此可推断由于猪和人内脏器官有相似性，未来技术将会使得猪的肝脏移植到人身上。因此，题干的说法是正确的。
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