柴油机运转中,由于()引起气缸盖冷却面产生裂纹。A.频繁起动、停车 B.冷却水道筋的

题型:单项选择题

问题:

柴油机运转中,由于()引起气缸盖冷却面产生裂纹。

A.频繁起动、停车

B.冷却水道筋的根部应力集中

C.停车后切断冷却水

D.冷却不良

考点:海船船员考试柴油机主要零件的检修柴油机主要零件的检修题库
题型:单项选择题

对中毒物质不明的病人,洗胃溶液常可选用( )

A.高锰酸钾溶液

B.生理盐水

C.牛奶

D.温开水

E.碳酸氢钠

题型:单项选择题

Ⅱ型呼吸衰竭的动脉血气诊断标准是()

A.PaO2<50mmHg,PaCO2>60mmHg

B.PaO2<65mmHg,PaCO2>45mmHg

C.PaO2<60mmHg,PaCO2>50mmHg

D.PaO2<75mmHg,PaCO2>45mmHg

E.PaO2<50mmHg,PaCO2>40mmHg

题型:单项选择题

治疗鼠疫的首选药是

A.头孢他啶

B.罗红霉素

C.链霉素

D.氯霉素

E.青霉素

题型:单项选择题

When I was a baby, I entertained you and made you laugh.Whenever I was “bad”, you'd shake your finger at me and ask, “How could you?”--but then you'd give up, and roll me over for a belly scratch and I believed that life could not be any more perfect.

My housetraining was a long process, because you were terribly busy, but we worked on that together. We went for long walks, runs in the park and car rides. We stopped for ice cream. I took long naps in the sun waiting for you to come home at the end of the day.

Gradually, you began spending more time at work and on your career, and more time searching for a human mate.Eventually, you fell in love.She, now your wife, is not a dog person, but I still welcomed her into our home.I was happy because you were happy.Then the human babies came along and I shared your excitement, I was fascinated by their pinkness, how they smelled, and I wanted to mother them too.

Your wife was afraid I would bite them.But nevertheless, as they began to grow, I became their friend.Now, you have a new job in another city and you and they will be moving to an apartment that does not allow pets.You've made the right decision for your “family”, but there was a time when I was your only family.

I was excited about the car ride until we arrived at the dog pound.It smelled of dogs and cats, of fear, of hopelessness.You filled out the paperwork and said, “I know you will find a good home for her”.They shrugged and gave you a pained look.The children were in tears as they waved me goodbye.And “How could you?” were the only three words that swept over my mind.

Is it better to live with hope or without hope? At first, whenever anyone passed my pen (围栏), I rushed to the front, hoping it was you, that you had changed your mind and that this was all a bad dream.

My beloved master, I will think of you and wait for you forever.I hope you receive more faithfulness from your family than you showed to me.

小题1:Who tells this story?

A.A dog.

B.A child.

C.A dog's owner.

D.A dog trainer.小题2:Why did the dog's owner take his dog to the pound?

A.He had a newborn baby.

B.His wife did not like the dog.

C.He was moving into a new building.

D.He thought the dog too troublesome.小题3:Which is true about the dog when it lived at the pound?

A.It hoped to be adopted by another family

B.It continued to love its former owner.

C.It did not trust humans any more.

D.It was excited about the pound.小题4:What is the theme of the story?

A.Be ready for changes.

B.Never expect too much.

C.Never complain about your life.

D.Be faithful to those who love you

题型:单项选择题

个人客户的风险评估侧重于()。

A.风险承受度

B.投资经验

C.风险承受度和投资经验

D.投资经验和担保保障度

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