3岁以下幼儿最常见的气管、支气管异物为()。 A.植物类 B.金属类 C.化学制品

题型:单项选择题

问题:

3岁以下幼儿最常见的气管、支气管异物为()。

A.植物类

B.金属类

C.化学制品

D.动物类

E.以上都不是

考点:耳鼻咽喉科住院医师气管和食管气管和食管题库
题型:单项选择题

对成膜材料的要求不包括()

A.成膜、脱膜性能好

B.成膜后有足够的强度和韧性

C.性质稳定,不降低药物的活性

D.无毒、无刺激性

E.应具有很好的水溶性

题型:单项选择题

阅读理解

     Hidden in our subconsciousness(潜意识)is a perfect mental picture.  We see ourselves on a long trip

that goes across the continent. We are traveling by train. Out the windows, we think in the passing scene

of cars on nearby highways,  of children waving at a crossing , of cattle feeding on a distant hillside, of

smoke pouring from a power plant, or row upon row of corn and wheat, of flat lands and valleys, of

mountains and rolling hills, of city skylines and village halls.

     But uppermost in our minds is the final destination.  On a certain day at a certain hour, we will pull into

the station. Bands will be playing and flags waving. Once we get there, so many wonderful dreams will

come true and the pieces of our lives will fit together like a completed jigsaw puzzle. How restlessly we

pace the aisles, condemning(谴责)the minutes for loitering(虚度)- waiting, waiting,  waiting for the

station.

     "When we reach the station, that will be it!"we cry. "When I'm 38." "When I buy a new 450SL

Mercdes Benz!""When I put the last kid through college.""When I have paid off the debt!" "When I get

a promotion.""When I reach the age of rement, I shall live happily ever after!"

     Sooner or later, we must realize there is no station, no one place to arrive at once and for all. The

true joy of life is the trip. The station is only a dream.It constantly outdistances us.

     "Relish(appreciate) the moment" is a good motto,  actually it isn't the burdens of today that drive man

mad. It is the regret over yesterday and the fear of tomorrow. Regret and fear are twin thieves who rob

us of today.

     So stop pacing the aisles and counting the miles. Instead, climb more mountains, eat more icecream,

swim more rivers,  watch more sunsets, laugh more and cry less. Life must be lived as we go along.

Then the station will come soon enough.

1. Why does the author describe the mental picture?

A. To lead us into a perfect world.    

B. To let people enjoy the scenery.

C. To introduce an actual trip of his.  

D. To compare it to our life's journey.

2. How do people feel when they're on their trip?

A. Puzzled.    

B. Happy.    

C. Relaxed.      

D. Impatient.

3. What does the author mean by "Regret and fear are twin thieves who rob us of today" in Line

    2 Paragraph 5?  

A. Regret and fear are responsible for the loss of today.

B. We must be careful of the two thieves: regret and fear.

C. Regret and fear stop us from enjoying our present life.

D. We're frequently challenged by the two: regret and fear.

4. Why does the author write the passage?

A. To teach us a good lesson.        

B. To tell us the right attitude to life.

C. To advise us to forget our worries.

D. To stop us wandering along the aisles.

题型:单项选择题

交通在经济建设方面所起的作用是什么?

题型:单项选择题

三型机系统支持板DIP1拨码开关第5位代表()。

A.上行新旧采集板

B.下行新旧采集板

C.上行内外探

D.下行内外探

题型:单项选择题

善于养血敛阴,柔肝止痛,平抑肝阳的药物是()

A.当归

B.熟地黄

C.阿胶

D.白芍

E.何首乌

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