单选题：_________填上最佳答案。

题目分类：专四
题目类型：单选题
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题目内容：

_________填上最佳答案。 A．in the beginning
B．on the beginning
C．in the end
D．at the end

参考答案：

答案解析：

Why couldn't the radiation belt be found earlier?

Why couldn't the radiation belt be found earlier?A．Because visual angles are dif

分类：专四题型：单选题

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According to the passage, which of the following adjectives best describes those

分类：专四题型：单选题

下列B房地产开发公司在该广告中的内容，符合房地产广告要求的有（　　）。

下列B房地产开发公司在该广告中的内容，符合房地产广告要求的有（　　）。

分类：专四题型：单选题

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Which of the following is INCORRECT according to the passage?

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桥梁结构中横梁的作用是（　）。

桥梁结构中横梁的作用是（　）。

分类：专四题型：单选题