2. 外语
  3. According to the passage, some engineers are trying to improve the handlebars because ______. Paragraph 3 mainly discusses ____

According to the passage, some engineers are trying to improve the handlebars because ______. Paragraph 3 mainly discusses ____

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问题 According to the passage, some engineers are trying to improve the handlebars because ______.
Paragraph 3 mainly discusses ______.
选项 A、why the children and their parents were interviewed
B、when the children turn the handlebars through 90 degrees
C、what causes the children to topple over
D、how serious injuries occur
答案D
解析 因为上段中提到了研究的目的是“辨别受伤是怎样产牛的，并想㈩一些应对措施”，因此推断C和D可能是答案。而该段的第1句(观点句)概述了全段的大意：By interviewing the children and their parems，Arbogast and her team were able to reconstruct many of the accidents and identified a common mechanism responsible for serious injuries．(与D呼应)而接下来的句子也是在具体说他们如何进行的实验： They discovered that…To maintain their balance they turn the handlebars through 90 degree…The bike then falls over and…因此D是答案。
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