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参考答案和解析
正确答案:A
更多“___________[A] around [B] over [C] on [D] up ”相关问题
  • 第1题:

    How much on average is the European Tissue business worth a month?__________

    A.Around 8.5 billion euros
    B.About 10 million dollars
    C.About 708 million euros
    D.Around 833 billion dollars

    答案:C
    解析:
    根据文章文章倒数第三段“The European tissue business is worth around 8.5 billion euros(10 billion dollars)annually…”,可知欧洲纸业每年产值85亿欧元,因此每月产值约为708百万欧元,故选C。

  • 第2题:

    对于PN结,设P区电位为Up、N区点位为UN,说法正确的是: ()。

    A.Up>UN

    B.Up<UN

    C.Up≥UN

    D.Up≤UN


    B

  • 第3题:

    在选择汽车最小传动比时,为了追求燃油经济性,哪种设计方式最好:()

    A.uamax/uP > 1

    B.uamax/uP = 1

    C.uamax/uP < 1

    D.uamax/uP = 0


    u amax / u P < 1

  • 第4题:

    The personal computer was a revolution in information technology that spawned a $50 billion hardware business with another $30 billion in software and peripherals (e.g. mouse keyboard printer etc. ) by 199. During its short 15 years the industry evolved through three successive periods. During its first 5 to 6 years it was characterized by explosive growth and multiple small competitors vying for a piece of the market. From 1981 to 1985 the industry became a battle for standards and retail shelf space. The third eras was one of increasing fragmentation. From 1986 through 1991-1992 new manufacturers from around the world granted from the industry leaders as new channels of distribution emerged and product innovation as well as revenue growth slowed
    During the early years of the industry venture capital in the U.S. encouraged the entry of new firms that offered products in every conceivable shape and size. By 1980 new entrants flooded the market prompting distinct standards and unique technical features. Almost every firm had a different configuration of hardware and software. The first PC had relatively little speed or memory. However even these earl computers allowed managers to perform tasks that were very time consuming.
    When did the PC industry start?

    A. Around 1981
    B. Around 1966
    C. Around 1976
    D. Around 1992

    答案:C
    解析:
    细节题。根据文段第一段的第三行,我们可以知道到1991年的时候这个PC的发展,然后文段提到这个过程历经了15年,所以1991-15=1976,故1976年是PC行业开始发展。因此答案选C。其他ABD选项不符合题意。

  • 第5题:

    在选择汽车最小传动比时,为了追求燃油经济性,哪种设计方式最好:

    A.uamax/uP > 1

    B.uamax/uP = 1

    C.uamax/uP < 1

    D.uamax/uP = 0


    u amax / u P < 1