2. 外语
  3. According to the news, the American space shuttle Columbia failed______.

According to the news, the American space shuttle Columbia failed______.

admin2013-03-23  24
问题 According to the news, the American space shuttle Columbia failed______.
  
NASA officials say, on Wednesday, one of three sensors (传感器) on Columbia’s left-hand landing gear possibly indicated the device had begun to deploy (展开；配置) 30 seconds before all contact was lost with the shuttle. The new information surfaced as NASA officials were working on the latest version of the timeline covering exactly what happened before Columbia and its crew was lost on Feb. Previous timelines released by NASA and showed a number of sensors in and around the left wing were failing off or indicating a heating trend beginning eight minutes before the contact was lost.
选项 A、30 seconds
B、5 minutes and 30 seconds
C、7 minutes and 30 seconds
D、3 minutes and 30 seconds
答案C
解析 本题是推理题。先要听清新闻里有关NASA两次调查结果的报道：最近公布的一次时间是30秒：30 seconds before all contact was lost with the shuttle。而前一次公布的时间是8分钟：eight minutes before the contact was lost。因此两个时间之差是7分30秒。
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