维护工作纪律“三不离”的内容是什么?

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问题:

维护工作纪律“三不离”的内容是什么?

考点:铁路通信工技能考试铁路通信工技能考试题库
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诊断慢性肺源性心脏病的主要依据是()。

A.慢性支气管-肺疾病病史

B.肺动脉高压、右心室肥大

C.发绀、呼吸困难

D.两肺干湿啰音

E.酸碱平衡失调

题型:问答题 简答题

下列说法正确的是( )。

A.根据组织层次分类,生态学可分为个体生态学、种群生态学、群落生态学、生态系统生态学、景观生态学和全球生态学

B.按生物分类类群划分,生态学可分为普通生态学、植物生态学、动物生态学和微生物生态学

C.按生物的生存环境类型划分,生态学可分为分子生态学、生理生态学、行为生态学、进化生态学、农田生态学、渔业生态学、草地生态学

D.按生态学与不同应用领域的结合划分,生态学可分为水域生态学和陆地生态学

题型:问答题 简答题

One Saturday afternoon in February, 1943, a farmer in Mexico stopped working for a moment and looked across his fields of corn. Suddenly he saw a thin line of white smoke curling up out of his field, about 200 feet from where he stood. As he went toward the smoke to see what it was, he heard a strange noise. The line of smoke became bigger. It looked as if some great force were pushing it up into the sky.

The farmer rushed home to get his wife. While he was urging his wife to hurry from the house, the earth shook violently. When he stood up after the earth stopped shaking, he looked across the field and saw that great flames were rising from his cornfield. A volcano was being born!

They hurried across the shaking earth to the village of Particutin, which was toward their farm. They found the village was seriously destroyed and the road from the village was filled with frightened people hurrying to safety.

Particutin did not become dark that night. The volcano lighted up the sky for miles around. Flames rushed out of the ground. The volcano threw hot stones a thousand feet through the air. Great explosion shook the earth and heavy black ashes fell from the sky, covering the roofs in Mexico city, 180 miles away.

But that was not all. On the third evening a float of lava(火山岩)began to boil up from the centre of the volcano. It came over the edge in a heavy flow, 2,000 feet wide, and travelled slowly across the valley, bringing certain death to everything that could not move from its path.

小题1:.

. From the passage we can conclude EXCEPT that         .

A.the volcano threw out a lot of ashes and hot stones

B.the volcano lasted several days

C.many people had to escape from the village

D.it caused many deaths and great loss小题2:.

. You can find the passage in a         .

A.newspaper

B.government report

C.leaflet for travellers

D.handbook小题3:.

. Which of the following is true according to the passage?

A.At the beginning the farmer heard a strange cry.

B.The farmer was working in the field when the disaster happened.

C.The farmer’s wife was working in the field at that moment.

D.The village was badly damaged.小题4:.

What does the passage mainly tell us?

A.The damage of a volcano.

B.A terrible volcano.

C.An unforgettable memory.

D.A farmer’s experience.

题型:问答题 简答题

就目前情况,临床上还应考虑哪项诊断

A.合并心力衰竭

B.合并尿路感染

C.合并急性肾炎

D.合并感染性心内膜炎

E.以上都不对

题型:问答题 简答题

下列属于荒煤气导出设备的是()

A.u型管

B.预热器

C.废气盘

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