当触电者呼吸、心跳停止而现场只有一人急救操作时,交替进行的抢救方法是()。A、先吹二

题型:多项选择题

问题:

当触电者呼吸、心跳停止而现场只有一人急救操作时,交替进行的抢救方法是()。

A、先吹二次气

B、先吹五次气

C、再挤压15次

D、再挤压20次

考点:机械制造行业技能考试金属焊接与切割(综合练习)金属焊接与切割(综合练习)题库
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三节干电池串联的电压是______.

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如图所示,若质点以初速v0正对倾角为θ=37°的斜面水平抛出,要求质点到达斜面时位移最小,则质点的飞行时间为(  )

A.

3v0
4g

B.

3v0
8g

C.

8v0
3g

D.

4v0
3g

题型:多项选择题

患者咽喉肿痛、低热1周。检查发现甲状腺肿大,左侧局部压痛,结合超声图像,最可能的诊断是()

A.结节性甲状腺肿

B.亚急性甲状腺炎

C.甲状腺腺瘤

D.甲状腺恶性肿瘤

E.甲状腺功能亢进症

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实际生产中锻烧含有94%CaCO3的石灰石500kg得到的生石灰实际产量为253kg,其产品收率为()。

A、51%

B、53.80%

C、90.40%

D、96%

题型:多项选择题

阅读理解。

      One day my teacher said, “ Life is a game of chess, and the other player is time.” From that

moment, I knew I had to enjoy my life.Do not waste time, because, you know, time will not come

back.You cannot buy it.It is one of those things in life that you must really, really value.

     When you see an opportunity, take it.You might not get it back.Never let an opportunity pass.

And if it is too hard, remember that in the middle of every difficulty lies an opportunity.

     Remember, you cannot choose how you' re going to die, or when.You can only decide how you' re

going to live.Study as if you were going to live forever; live as if you were going to die tomorrow.

Don' t just think of the present, but also think of your future. Your future is yet another chapter in your

life and another way to live it.

     Every single living thing has a purpose in life."The purpose of life is a life of purpose," said Robert

Byre.

Learn to use time wisely, take opportunities, and enjoy life.We can discover the meaning of life in three

different ways: (1) by doing a deed; (2) by experiencing a value; (3) by suffering.Life.

1.The underlined part suggests that___________.

A.If life is a game of chess, time is also a game of chess

B.If life is a game of chess, both you and time are the players

C.If life is one player in a game of chess, time is the other player

D.If time is a game of chess, both life and you are the players

2.According to the author, what can you decide?

A.How you die.                

B.When you die.

C.How you live.                

D.When you succeed.

3.This article is most probably from__________.

A.an explanation of time in the universe

B.an essay about time and life

C.an argument that time is the most important thing in life

D.a description of an important class

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