对于爆炸物品火灾的扑救方式,正确的是()。A、用沙土盖压 B、强力水流直接冲击堆垛 C、

题型:单项选择题

问题:

对于爆炸物品火灾的扑救方式,正确的是()。

A、用沙土盖压

B、强力水流直接冲击堆垛

C、以吊射的方式用水流灭火

D、用任意灭火器灭火

考点:应急救援员应急救援员理论知识应急救援员理论知识题库
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120型控制阀的主阀作用部(主控机构)采用成熟的橡胶膜板加()的结构;具有良好的作用连续性、较长的寿命、自动防止异物侵入等优点

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读“大洲大洋轮廓图”,完成下列各题:

(1)图中①是________洋,与其东岸相邻的大洲是________和________。

(2)印度洋是________(填序号);跨经度最多,纬度最高的大洲是________(填序号)

(3)②是________洲,⑥是________洲,两洲的分界线是________运河,⑥西部紧连的大洲是________

    洲,二者以________山________河________山________海峡为界。

题型:单项选择题

动物肌肉内糖类的存在形式为

A.葡萄糖
B.乳糖
C.半乳糖
D.糖原
E.淀粉

题型:单项选择题
A lady wanted a birthday gift from her husband. For many months she had liked a beautiful   1 , and knowing her husband could   2  it, she told him that was all she wanted. On the morning of the   3 , her husband told her how   4  he was to have such a good wife, and how much he loved her. He   5  her a beautiful gift package (纸盒). She opened it and   6  a Bible.
  7 , she raised her voice and said to her husband, “With all your money, you give me a Bible?” She was so   8  that she left him.
Many years passed and the lady was very   9  in business. She owned two large companies. She   10  her husband was very old, and thought perhaps she should go to   11  him. But before she could, she   12  a letter telling her that he had died, and gave all of his possessions (财产) to her. She needed to come back and   13  things.
When she arrived at his house, sadness   14  her heart. She saw the still new
  15 , just as she had left it years before. With   16 , she opened it and began to turn the pages. A ring   17  from the Bible to the floor and a  18  could be seen. She picked it up and found it was the ring she wanted in those days. And on the card was the date of her birth, and the words “LUV U ALWAYS”.
  19  your gift is not packaged the way you want it, it’s because it is better packaged the way it is! Always appreciate little things; they usually lead you to bigger things! The best and most beautiful things in the world cannot be seen or even touched for they must be felt with the   20 .
小题1:
A.watchB.ringC.coatD.box
小题2:
A.affordB.likeC.designD.guess
小题3:
A.holidayB.performance C.birthdayD.meeting
小题4:
A.proudB.kindC.sorryD.brave
小题5:
A.lentB.askedC.gaveD.moved
小题6:
A.carriedB.foundC.missedD.held
小题7:
A.PolitelyB.LightlyC.PatientlyD.Angrily
小题8:
A.calmB.upsetC.gratefulD.careless
小题9:
A.failingB.lonelyC.successfulD.poor
小题10:
A.wonderedB.hopedC.realizedD.explained
小题11:
A.visitB.understandC.catchD.help
小题12:
A.passedB.wroteC.sentD.received
小题13:
A.take care ofB.pay forC.look forD.give away
小题14:
A.coveredB.brokeC.leftD.filled
小题15:
A.carB.BibleC.letterD.table
小题16:
A.smilesB.laughterC.tearsD.interests
小题17:
A.hid B.droppedC.disappearedD.made
小题18:
A.bookB.penC.flowerD.card
小题19:
A.If B.ButC.AlthoughD.So
小题20:
A.handB.eyeC.faceD.heart
题型:单项选择题

某人用手将1kg物体由静止向上提起1m,这时物体的速度为2m/s(g=10m/s2),则下列说法错误的是(  )

A.物体克服重力做功10J

B.合外力做功2J

C.合外力做功12J

D.手对物体做功10J

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