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同一厂家、同材质的保温材料见证取样送检次数不得少于()

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The stability of the bond market is mentioned in the first paragraph so as to______.

A. show the strength of the stock market
B. manifest the public"s trust in the economic situation
C. reveal the ease in East-West tensions
D. indicate the higher proportion of incomes spent for commodities

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Read the following text carefully and then write a summary based on it. Your should

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在工程招投标中采用()是国际上较为通行的做法。

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According to the text, no measures were resorted to in environmental protection after World War Ⅱ in Japan because _____.

A. they were reckoned to be unnecessary.
B. they would check economic development.
C. no one was much interested in them.
D. pollution was held as inevitable at that time.

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