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25 For a given characteristic in a construction process, the standard deviation associated with production variation is 0.8", and the standard deviation associated with measurement variation is 0.6". The total standard deviation for this characteristic is

题目

25 For a given characteristic in a construction process, the standard deviation associated with production variation is 0.8", and the standard deviation associated with measurement variation is 0.6". The total standard deviation for this characteristic is:

A. 1.4"

B. 1.2".

C. 1.0"

D. 0.8"

E. 0.2"


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  • 第1题:

    A healthy life is frequently thought to be _______ with the open countryside and homegrown food.

    A) tied B) bound

    C) involved D) associated

     

     


    选C
    be involved in ,其余的都可以和with 连用,但在这里意思不对。be tied with 是被绑住,be bound with 也是,be associated with 是和什么紧密相关。

  • 第2题:

    ___________

    A. presented B. marked C. lit D. associated


    正确答案:D

  • 第3题:

    I have ________tasks to all the departments and I hope I will get good news soon.

    A.assigned
    B.assure
    C.associate
    D.assume

    答案:A
    解析:
    本题考查内容为“现在完成时及形近词辨析”。 A选项意为“分配,分派”,B选项意为“向……保证”,C选项意为“(使)联合”,D选项意为“假设”。题意为“我已经把任务分配给所有部门,我希望可以尽快听到好消息。”,现在完成时的结构为“have/has done”,因此选A。
      

  • 第4题:

    注册一个自定义组件语句的用法是:( )

    A.RegisterComponents(TMyComponent,[‘Standard’])

    B.Register(TMyComponent,[‘Standard’])

    C.RegisterComponents(‘Standard’,[TMyComponent])

    D.Register(‘Standard’,TMyComponent)


    正确答案:C

  • 第5题:

    Magnetic heading differs from compass heading by______.

    A.compass error

    B.true heading

    C.variation

    D.Deviation


    正确答案:D
    磁首向不同于罗经首向在于自差。

  • 第6题:

    A healthy life is frequently thought to be connected with the open countryside and homegrown food.

    A:tied
    B:bound
    C:involved
    D:associated

    答案:D
    解析:
    本句话的意思:人们经常认为健康的生活与广阔的村野和自种的食物有关。 be associated with sth.意为“与······联系”,最符合题意,其他选项无此用法,如:She associated happiness with having money.她把幸福和有钱联想到一起。tie意为“连接”,如:The girl tied the ends of the thread.这女孩把线的两端连接起来。bind意为“绑,约束”,如:She bound up her hair with a handkerchief.她用手绢把头发扎了起来。involve意为“牵涉,忙于”,如:How should we involve ourselves in school life?我们应该怎样投入学校生活?