The engineers are trying to improve the handlebars because How many abdominal injuries in children were caused by bicycle accid

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问题 The engineers are trying to improve the handlebars because
How many abdominal injuries in children were caused by bicycle accidents?

选项 A、Thirty.
B、Ninety.
C、50 percent.
D、More than a third.

答案D

解析

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职称英语理工类C级

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