单选题:根据以下材料,回答题。According to the passage, some engineers are tryi

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题目内容:
根据以下材料,回答题。

According to the passage, some engineers are trying to improve the handlebars because
A.they are not noble enough.
B.they may kill children.
C.they are likely to crash.   
D.they make the bike move at a low speed.
参考答案:
答案解析:

简述所有者权益的概念及特点。

简述所有者权益的概念及特点。

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请在(48)处填上最佳答案

请在(48)处填上最佳答案

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请在(52)处填上最佳答案。

请在(52)处填上最佳答案。A.automatically B.accidentally C.tremendously D.usually

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根据以下材料,回答题。请在(51)处填上最佳答案。A. tryB. tried       C. trying D. h

根据以下材料,回答题。请在(51)处填上最佳答案。A. tryB. tried       C. trying D. having tried

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The project funded by the National Science Foundation

The project funded by the National Science FoundationA.was first proposed by som

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