2. 外语
  3. In his book on biotechnology, Rifkin_____that "for now, the most important issue at hand is to make the new science and technolo

In his book on biotechnology, Rifkin_____that "for now, the most important issue at hand is to make the new science and technolo

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问题 In his book on biotechnology, Rifkin_____that "for now, the most important issue at hand is to make the new science and technology an issue of considerable public attention."
选项 A、hypothesizes
B、maintains
C、mandates
D、speculates
答案B
解析 四个选项的意思分别是：hypothesize假设，猜测；maintain坚持，主张；mandate强制执行，委托办理；speculate思索，猜。句意是：在他所写的有关生物技术的书中，里夫金认为“目前手边最重要的事是使新的科学和技术成为公众广为关注的问题。”所以正确答案是B。
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