仪表风系统在ON/OFF控制方式适用于()用气A、全气量供气 B、间歇性 C、排气压

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问题:

仪表风系统在ON/OFF控制方式适用于()用气

A、全气量供气

B、间歇性

C、排气压力

D、用量稳定

考点:采油工考试海上采油工程仪表高级海上采油工程仪表高级题库
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如图所示,两根相距为l的平行直导轨ab、cd、b、d间连有一固定电阻R,导轨电阻可忽略不计;MN为放在ab和cd上的一导体杆,与ab垂直,其电阻也为R;整个装置处于匀强磁场中,磁感应强度的大小为B,磁场方向垂直于导轨所在平面(指向图中纸面内);现对MN施力使它沿导轨方向以速度v(如图)做匀速运动;令U表示MN两端电压的大小,则(  )

A.U=vBl,流过固定电阻R的感应电流由b到d

B.U=vBl,流过固定电阻R的感应电流由d到b

C.U=vBl,流过固定电阻R的感应电流由b到d

D.U=vBl,流过固定电阻R的感应电流由d到b

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电阻串联时,流过每个电阻的电流为同一电流,且等于线路电流.

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破碎前矿石的最大直径与破碎后最小块直径之比(或粒度之比),称为破碎比。

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Perhaps you have never heard of Katherine Lawes.Katherine was the wife of Lewis Lawes, warden (监狱长) at Sing Sing Prison from 1920 to 1941.In these 21 years he made many reforms --- and an important part of his success was due to his wife Katherine.

Katherine took seriously the idea that the prisoners are human beings ,worthy of attention and respect .She regularly visited inside the walls of Sing Sing.She encouraged the prisoners, took things to them and spent time listening to them.Most importantly, she cared about them.And as a result, they cared deeply about her.

Then one night in October of 1937, news was "telegraphed" between the prison cells that Katherine had been killed in an accident.The prisoners asked the warden to allow them to attend her funeral.He agreed to their strange request and a few days later the south gate of Sing Sing swung slowly open.Hundreds of men who had committed almost every crime imaginable marched slowly out of the prison, later gathered again at the gate and returned to their cells.There were so many that they proceeded unguarded.But no one tried to escape.If he had, the others might have killed him immediately.So devoted were they to Katherine Lawes, the woman who daily walked into Hell to show the men a piece of Heaven.

Katherine' s strength was to see the men less as prisoners and more as individuals.Thomas Moore once said, "We can only treat badly those things or people whose souls we show no respect for."

59.小题1:When Katherine's husband was the warden at Sing Sing Prison, she did the following things EXCEPT_______________.

A.encouraging the prisoners

B.visiting the prison houses

C.doing some writing for the prisoner

D.spending time in listening to the prisoners60.小题2:Why did the prisoners ask the warden to allow them to attend Katherine’s funeral?

A.Because Katherine didn't look down upon them and cared about them.

B.Because Katherine was the wife of the warden.

C.Because Katherine made reforms in the prison.

D.Because Katherine had been killed by one of them.61.小题3:Whom does the underlined part “the others” refer to?

A.The policemen at the funeral.

B.The other prisoners.

C.The guards.

D.The policemen from other prisons.62.小题4:The best title of this passage is_________.

A.Katherine Lawes' s Life

B.Reforms at Sing Sing Prison

C.To Honor Their Souls

D.To Meet Their Requirement

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慢性支气管炎偶有轻微咳嗽,少量痰液,采取下列哪项措施最为合适()

A.应用抗生素治疗

B.少量镇咳剂

C.应用支气管扩张剂以利排痰

D.提高机体抗病能力,避免上呼吸道感染

E.应用少量激素,减少气道非特异性炎症

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