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  3. Advanced technology has already pushed human being to edges, such as the pro

Advanced technology has already pushed human being to edges, such as the pro

游客2024-02-19  49
问题     Advanced technology has already pushed human being to edges, such as the production of weapons of mass destruction, the destruction of Ozone by Freon, and the application of clone. The heated debate over【C1】______cloning technique should be used in human reproduction must be considered as a serious【C2】______.
    Clone, to a certain degree, is【C3】______to mankind. Such disease as Parkinsons will【C4】______be cured in the future in the hope of further【C5】______of clone. However, the【C6】______of this technology will bring human being unthinkable destruction.
【C7】______the declaration of the death of Dolly, we are more【C8】______of the inefficient procedure of clone. According to "Dolly’s false legacy", the incidence of death among offspring【C9】______by cloning is much higher than it is【C10】______natural reproduction--roughly 10 times as high as【C11】______before birth and 3 times as high after birth. And【C12】______you may argue that this technology will be perfected in the future, I don’t see there is any point in【C13】______--being cloning.
    Many people【C14】______this technology a promising one as to bring all human being to a new era in which all human【C15】______will be accomplished by cloning.【C16】______scientists in some countries have already started their great plan to clone human. But let’s think, what is the practical value in doing so? You may tell me that it can bring hope for those couples【C17】______to have children because they might choose to have a copy of one of them rather than【C18】______the gene intrusion from a【C19】______But imagine, if you have a child owning the same appearance as yours or your husband’s, will you accept it without any【C20】______. [br] 【C7】
选项 A、From
B、Until
C、By
D、Since
答案 D
解析 介词辨义题。分析文意可知，“多利”羊之死是一个时间点，从那以后，人们对于克隆技术有了更深刻的认识。故应选择“since”，表示“自从”。
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