2. 外语
  3. The engineers are trying to improve the handlebars because Paragraph 3 mainly discusses

The engineers are trying to improve the handlebars because Paragraph 3 mainly discusses

admin2012-09-10  69
问题 The engineers are trying to improve the handlebars because
Paragraph 3 mainly discusses
选项 A、why the children and their parents were interviewed,
B、how serious abdominal injuries occur,
C、when the children turn the handlebars.
D、what stops bicycle accidents.
答案B
解析
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