A diesel engine exposed to widely varying ambient temperatures should use to a lubricating oil with .A.a high viscosity indexB.a low viscosity indexC.neutralize acidsD.resist oxidation at high temperatures

题目

A diesel engine exposed to widely varying ambient temperatures should use to a lubricating oil with .

A.a high viscosity index

B.a low viscosity index

C.neutralize acids

D.resist oxidation at high temperatures

相似考题

1.()that happen,what()we do?A、If…shallB、Suppose…shallC、Should…wouldD、Had…should

2._________[A] subjected[B] left[C] drawn[D] exposed

3.________ the vessel have no safety radiotelegraphy certificate at the time of her delivery，she ________ be held to be unseaworthy．A.If／mayB.Will／shallC.Should／wouldD.Would／should

4.That unfortunate remark( )his ignorance of the subject.A、shelteredB、detectedC、explainedD、exposed

更多“A diesel engine exposed to widely varying ambient temperatures should use to a lubricating ”相关问题

  • 第1题：

    ______ it rain tomorrow moring, the loading ______.

    A.Should / will be postponed

    B.If / shall be postponed

    C.Should / would be postponed

    D.If / has to be postponed


    正确答案：C
    一旦明天早上下雨，装货将被延迟。

  • 第2题：

    However,it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when（ ）to it often enough.

    A.subjected
    B.left
    C.drawn
    D.exposed

    答案：D
    解析：
    本题所在的句子是一个由when引导的条件句，由主句的主语可以推断，该从句省略了主语和谓语即people are。同时，从句中的it指代的是上文的a certain smell，由此可推断本句意思是：如果人能经常闻到这种气味也能突然对它变得敏感。而四个选项中，只有D.expose一词能与to搭配表示“使某人接触到……”，在这里引申为闻到气味。

  • 第3题：

    Even when __________to such tough living conditions, the children would never have any complaint.

    A.exposing
    B.exposeD.
    C.expose
    D.to expose

    答案：B
    解析：
    考查从句的省略。前半句实际上是状语从句when(the children are)exposed to such tough living conditions的省略说法。句意为“甚至当孩子们处在如此艰难的生活状况中时，他们也不会有任何的抱怨”。

  • 第4题：

    Which of the following is closest in meaning to the underlined word "ambient" in Paragraph 2?

    A.Surrounding
    B.Familiar
    C.Foreign
    D.Local

    答案：A
    解析：
    词义题。根据画线词定位到第二段。该段描述了婴儿在子宫中听到的声音是来自于周围的语言。另外文章倒数第二段中也提到了“Newborns ‘not only have memorized…of their respective surroundinglanguage…”。所以“ambient”与“surrounding”的意思接近，本题选A。familiar“熟悉的”，foreign“ 外国的”，local“当地的”。

  • 第5题：

    American companies are evolving from mass‐production manufacturing to（ ）enterprises.

    A.moveable
    B.changing
    C.flexible
    D.varying

    答案：C
    解析：
    flexible“灵活的，可变通的”，与mass‐production相对。句意：美国公司正在从大规模生产向灵活多变的企业发展。A.moveable“活动的，可移动的”；B.changing“变化的”；D.varying“变化的”。

  • 第6题：

    The shutters stood( )，and through one of the newly-washed windows I caught the light of a fire.

    A.wide
    B.straight
    C.upright
    D.widely

    答案：A
    解析：
    考查副词辨析。百叶窗全开着，透过刚擦完的玻璃，我看到了一束火光。

相关内容