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更多“在危险爆炸气体环境中,可燃气体危险程度顺序是T6>T5>T4>T3>T2>T1,IIC>IIB>IIA,IIA级,T1组可燃气 ”相关问题
  • 第1题:

    【T1】

    A.SEEK

    B.LOOKED

    C.PART A.TAKING【T1】______IN DANGEROUS SPORTS AND ACTIVITIES

    B.WHO HAVE【T2】______FOR ADVENTURE

    C.WHO【T3】______AN IMMEDIATE EXCITEMENT FROM A RISKY ACTIVITY AROUND THE WORLD MORE AND MORE PEOPLE ARE【T4】______.OF COURSE, THERE HAVE ALWAYS BEEN PEOPLE【T5】______—THOSE WHO HAVE CLIMBED THE HIGHEST MOUNTAINS, EXPLORED UNKNOWN PARTS OF THE WORLD OR SAILED IN SMALL BOATS ACROSS THE GREATEST OCEANS.NOW, HOWEVER, THERE ARE PEOPLE【T6】_______ WHICH MAY ONLY LAST A FEW MINUTES OR EVEN SECONDS.


    正确答案:part
    takepartin为固定短语,意为“参加,参与”。

  • 第2题:

    【T5】

    A.SEEK

    B.LOOKED

    C.PART A.TAKING【T1】______IN DANGEROUS SPORTS AND ACTIVITIES

    B.WHO HAVE【T2】______FOR ADVENTURE

    C.WHO【T3】______AN IMMEDIATE EXCITEMENT FROM A RISKY ACTIVITY AROUND THE WORLD MORE AND MORE PEOPLE ARE【T4】______.OF COURSE, THERE HAVE ALWAYS BEEN PEOPLE【T5】______—THOSE WHO HAVE CLIMBED THE HIGHEST MOUNTAINS, EXPLORED UNKNOWN PARTS OF THE WORLD OR SAILED IN SMALL BOATS ACROSS THE GREATEST OCEANS.NOW, HOWEVER, THERE ARE PEOPLE【T6】_______ WHICH MAY ONLY LAST A FEW MINUTES OR EVEN SECONDS.


    正确答案:B
    破折号后的内容是对前文内容的解释说明,破折号列举的那些人都是渴望冒险的人,所以选B。

  • 第3题:

    爆炸性气体、蒸气按( )分为IIA级、IIB级、IIC级。

    A.引燃温度
    B.爆炸极限
    C.最小点燃电流比(MICR)和最大试验安全间隙(MESG)
    D.闪点

    答案:C
    解析:
    本题考查的是电气防火防爆技术。爆炸性气体、蒸气按最小点燃电流比和最大试验安全间隙分为IIA级、IIB级、IIC级。

  • 第4题:

    【T4】

    A.SEEK

    B.LOOKED

    C.PART A.TAKING【T1】______IN DANGEROUS SPORTS AND ACTIVITIES

    B.WHO HAVE【T2】______FOR ADVENTURE

    C.WHO【T3】______AN IMMEDIATE EXCITEMENT FROM A RISKY ACTIVITY AROUND THE WORLD MORE AND MORE PEOPLE ARE【T4】______.OF COURSE, THERE HAVE ALWAYS BEEN PEOPLE【T5】______—THOSE WHO HAVE CLIMBED THE HIGHEST MOUNTAINS, EXPLORED UNKNOWN PARTS OF THE WORLD OR SAILED IN SMALL BOATS ACROSS THE GREATEST OCEANS.NOW, HOWEVER, THERE ARE PEOPLE【T6】_______ WHICH MAY ONLY LAST A FEW MINUTES OR EVEN SECONDS.


    正确答案:A
    空格前的are与A项中的现在分词taking相互对应,所以选A。

  • 第5题:

    【T6】

    A.SEEK

    B.LOOKED

    C.PART A.TAKING【T1】______IN DANGEROUS SPORTS AND ACTIVITIES

    B.WHO HAVE【T2】______FOR ADVENTURE

    C.WHO【T3】______AN IMMEDIATE EXCITEMENT FROM A RISKY ACTIVITY AROUND THE WORLD MORE AND MORE PEOPLE ARE【T4】______.OF COURSE, THERE HAVE ALWAYS BEEN PEOPLE【T5】______—THOSE WHO HAVE CLIMBED THE HIGHEST MOUNTAINS, EXPLORED UNKNOWN PARTS OF THE WORLD OR SAILED IN SMALL BOATS ACROSS THE GREATEST OCEANS.NOW, HOWEVER, THERE ARE PEOPLE【T6】_______ WHICH MAY ONLY LAST A FEW MINUTES OR EVEN SECONDS.


    正确答案:C
    空格后是which引导的从句,空格处所选项要包含which修饰的先行词,C项的“ariskyactivity”符合。