The word "nosedived"(Para 1) most probably means "______". Simon Newcomb concluded in a celebrated essay that ______.

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问题 The word "nosedived"(Para 1) most probably means "______".
Simon Newcomb concluded in a celebrated essay that ______.

选项 A、the hope that men could fly long distances through the air would remain a dream
B、it is clear that building a machine by which men shall fly long distances is impossible
C、all physical facts have demonstrated that men can not fly long distances through the air
D、men have not yet learned to produce a flying machine with known substances and known forms of machinery and force

答案B

解析 细节题。由题干Simon Newcomb可定位到第三段最后一句。接着第四段是引用他的话。他的话是一个例子,来说明第三段第二句的观点:重于空的飞行是不可能的,所以选B。Simon Newcomb是说制造飞行器是否可能的问题,而不是说人类是否可以飞行的问题,所以A不对。C是对第四段最后一句话的曲解,这句话的意思是这个定理在笔者看来与任何物理定理一样清楚明白。D不是Simon Newcomb 所写的内容。
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