请在第(59)处填上最佳答案。

请在第(59)处填上最佳答案。A.because B.therefore C.because of D.thus

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请在第(54)处填上最佳答案。

请在第(54)处填上最佳答案。

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According to the passage, the writer looks upon the anti-smo

According to the passage, the writer looks upon the anti-smoking wall-builders'

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As is suggested, the common solution to the common problem i

As is suggested, the common solution to the common problem is__________.A.to sep

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所得材料自然、真实的一种研究方法是(  )。

所得材料自然、真实的一种研究方法是(  )。A.问卷法 B.谈话法 C.观察法 D.实验法

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