Dr. Mann is now in Cambridge, writing a book on the ________

Dr. Mann is now in Cambridge, writing a book on the ________。

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Which of the following can be called as a “lame duck” ?

Which of the following can be called as a “lame duck” ?A.A disabled little chil

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·pollution control needs the support of technology and techn

·pollution control needs the support of technology and techniques?

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我国西部地区的优势条件不包括(  )

我国西部地区的优势条件不包括(  )A.矿产资源丰富 B.旅游资源丰富 C.人力资源丰富 D.土地资源丰富

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关于美国东北部工业区的正确叙述是(  )

关于美国东北部工业区的正确叙述是(  )A.附近煤、铁资源贫乏 B.港口众多,水运便利 C.宇航、电子、飞机制造等工业发展较快 D.休斯敦是本区的重要工业城市

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