血细胞比容的参考值是()。 A.男性50%~60%,女性40%~50% B.男性30

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问题:

血细胞比容的参考值是()。

A.男性50%~60%,女性40%~50%

B.男性30%~50%,女性25%~40%

C.男性40%~50%,女性37%~48%

D.男性60%~70%,女性40%~50%

E.男性70%~80%,女性60%~70%

考点:输血技术(医学高级)输血技术(医学高级)题库
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根据《煤矿重大安全隐患认定办法(试行)》之规定:开采容易自燃和自燃的煤层时;编制防止自然发火设计或者按设计组织生产的,不属于煤矿重大安全生产隐患。

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有机物中的乙烯(C2H4)、丙烯(C3H6)、丁烯(C4H8)等,它们的组成和结构都很相似,这类有机物被称作为烯烃.据此推断碳原子数为n的烯烃的化学式为(  )

A.CnH2n

B.CnH2n+2

C.CnH2n-2

D.CnHn

题型:单项选择题

That cold January night, I was growing sick of my life in San Francisco. There I was, walking home at one in the morning after a tiring practice at the theatre. With opening night only a week ago, I was still learning my lines. I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.

As I walked down empty streets under tall buildings, I felt very small and cold. I began running, both to keep warm and to keep away from any possible robbers (抢劫犯). Very few people were still out except a few sad-looking homeless people under blankets.

About a block from my apartment (公寓房间), I heard a sound behind me. I turned quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me nervous, so I started to run faster. Not until I reached my apartment building and unlocked the door did I realize what the noise had been. It had been my wallet falling to the sidewalk.

Suddenly I wasn’t cold or tired anymore. I ran out of the door and back to where I’d heard the noise. Although I searched the sidewalk anxiously for fifteen minutes, my wallet was nowhere to be found.

Just as I was about to give up the search, I heard the garbage truck (垃圾车) pull up to the sidewalk next to me. When a voice called from the inside, “ Alisa Camacho?” I thought I was dreaming. How could this man know my name? the door opened, and out jumped a small red-haired man with an amused look in his eye. “Is this what you’re looking for?” he asked, holding up a small square shape.

It was nearly 3 A.M. by the time I got into bed. I wouldn’t get much sleep that night, but I had gotten my wallet back. I also had gotten back some enjoyment of city life. I realized that the city couldn’t be a bad place as long as people were wiling to help each other.

小题1:How did the write feel when she was walking home after work?

A.Cold and sick

B.Fortunate and helpful

C.Satisfied and cheerful

D.Disappointed and helpless小题2:From the first paragraph, we learn that the write was busy  ______.

A.solving her problem at the bank

B.taking part in various city activities

C.learning acting in an evening school

D.preparing for the first night show小题3:On her way home the writer _______.

A.lost her wallet unknowingly

B.was stopped by a garbage truck driver

C.was robbed of her wallet by an armed man

D.found some homeless people following her小题4:In the fifth paragraph, why did the writer say she was dreaming?

A.Someone offered to take her back home.

B.A red-haired man came to see her.

C.She heard someone call her name

D.Her wallet was found in a garbage truck.小题5:From the text, we can infer that the writer _________.

A.would stop working at night

B.would stay on in San Francisco

C.would make friends with cleaners

D.would give up her job at the bank.

题型:单项选择题

物位测量仪表一般有( )。

A.浮球液位控制器

B.超声波物位计

C.电容物位控制器

D.蜗轮流量传感器

题型:单项选择题

下列哪一项不是呕血与咳血的鉴别要点()

A.血来源于肺,还是胃

B.出血混有痰涎,还是食物残渣

C.出血前有咳嗽咽痒胸闷症状,还是有胃脘不适,胃痛恶心症状

D.出血后是否痰中带血,是否有便血

E.大便潜血是否阳性

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