英语四级

单选题One of the reasons, why the inventions failed to deliver to investors the expected rewards is________

A.the policies of the states
B.the lacked innovations
C.the commercialization of the invention
D.the competition, from other investors

参考答案:A进入在线模考
【设题处】因果处设题
【解析】选[A].[A]与第三段末句“…under the control of governments via regulation…expropriation.”表达一致,故为答案。第三段第三句提到,伟大的发明一直伴随着创新,由此可见它并不缺乏创新,故排除[B]。第三段第二句提到 “every great innovator…by commoditizing the invention.”,其中commoditizin9“商品化”与commercialization“商业化”属 于两个不同的概念,故排除[C]。同样由第三段第二句可知,竞争是来自imitation而不是other investors,故排除[D]。

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