[单项选择]下列关于现代生物技术应用的安全性的说法错误的是（）
A. 中国对于克隆人的态度是不反对治疗性克隆，可以有限制的进行克隆人实验
B. 对转基因植物外源DNA要进行认真选择，避免产生对人体有害或过敏的蛋白质
C. 种植转基因植物有可能因基因扩散而影响野生植物的遗传多样性
D. 一旦发现转基因生物出现了安全性问题，要马上停止实验并销毁重组生物

M: Is this the Eastern Airline check-in
W: Yes. Can I see your ticket, please

Silicon Valley is a magnet to which numerous talented engineers, scientists and entrepreneurs from overseas flock in search of fame, fast money and to participate in a technological revolution whose impact on mankind will surely surpass the epoch-making European Renaissance and Industrial Revolution of the bygone age.
(46) With the rapid spread of the Internet since the early 1990s, and the relentless technological innovations generated through it, the information era is truly upon us, profoundly influencing and changing not only our lifestyle, but also the way we work, do business, think and communicate with others.
(47) The unprecedented success of the Valley is a testimony to the concerted international endeavors and contributions by people from diverse cultural and racial backgrounds, made possible by the favorable political, economic and intellectual climate prevailing, as well as the farsighted policies of the US government.
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