生产具有外部性,即运输生产是与外部环境不断地发生着物质、能力和信息的交换,这体现了运输生产的( )特点。

生产具有外部性,即运输生产是与外部环境不断地发生着物质、能力和信息的交换,这体现了运输生产的( )特点。A.开放性 B.增值性 C.同一性 D.派生性

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运输业的发展是( )发展的先行行业和重要基础。

运输业的发展是( )发展的先行行业和重要基础。A.第一产业 B.第二产业 C.第三产业 D.第四产业

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The second technique suggests that you just imagine

The second technique suggests that you just imagineA.setting a goal is as simple

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The word "touch" in paragraph 7 could be best replaced by

The word "touch" in paragraph 7 could be best replaced byA."deposit" B."lend" C.

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阅读下文,回答题。Skill CancerMelanoma(黑素瘤),the deadliest kind of ski

阅读下文,回答题。Skill CancerMelanoma(黑素瘤),the deadliest kind of skin cancer is now th

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