[单项选择] Steve Robinson went for a walk yesterday morning with tens of millions of people watching. A walk in space. What made his sojournWhich of the following is NOT cited by the author in his criticism of NASA’s neglect of safety

A．NASA’sallowingDiscoverytoflyinspiteofquestionsaboutsafety.
B．LaunchingthespacecraftfromKennedySpaceCenter.
C．TheColumbiadisaster30monthsago．
D．TheexplosionofChallenger．

参考答案： B

● 参考解析

本题为反选细节题。在文章第四段，作者批评了NASA忽视安全第一的原则，在该局内外有人质疑安全问题时，还允许“发现号”作空间飞行，选项A与此对应，故A被排除。在第二段和第四段里作者都提到“哥伦比亚号”的悲剧，第四段也提到“挑战者号”的悲剧，而对这些悲剧的调查都证实了NASA没有把安全放在第一位，选项C和D与此吻合，所以也均被排除。只有B项不是用来批评NASA的理由，太空飞行器在肯尼迪航天中心发射本身不构成安全问题，故选B。

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[单项选择] Steve Robinson went for a walk yesterday morning with tens of millions of people watching. A walk in space. What made his sojournWhich of the following is NOT cited by the author in his criticism of NASA’s neglect of safety

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