[多选题]下列对于接触网的悬挂类型叙述正确的是（）。（职工）（-我要搜题网

[单项选择]若观察胎儿脸面景观，宜采用哪种诊断法（）
A. A型超声
B. B型超声
C. M型超声
D. 表面三维显示法
E. 彩色多普勒血流成像

[单选题]列车中车辆的连挂由（）负责
A.车站人员
B.列检人员
C.调车作业人员

[单选题]管道输气项目用同步电动机的励磁方式为( )。
A.复励
B.副励
C.无刷励磁

[单项选择]水流从吸水管沿着泵轴的方向以绝对速度C进入水泵叶轮，自（）处流入，液体质点在进入叶轮后，就经历着一种复合圆周运动。
A. 水泵进口
B. 叶轮进口
C. 吸水管进口
D. 真空表进口

[不定项选择题]共用题干第二篇

The Iceman

On a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High
up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200
meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had
melted more than usual so the body had come to the surface.
It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the
head.There were still skin on the bones and the remains of some clothes.The hands were still holding the
wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of
gloves made of tree bark（树皮）and a holder for arrows.
Who was this man?How and when had he died?Everybody had a different answer to these questions.
Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,
since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who
had died in those mountains twenty years before and whose body had never been found.The scientists who
rushed to look at the body thought it was probably much older,maybe even a thousand years old.
With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.
Born in about 3300 B. C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably
a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a different
story. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin
but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on
tne back of his head. This means that he was probably in some kind of a battle. It might have been Part of a
larger war, or he might have been fighting bandits.He might even have been a bandit himself.
By studying his clothes and tools,scientists have already learned a great deal from the iceman about the
times he lived in. We may never know the full story of how he died,but he has given us important clues to
tne history of those distant times. The body of the iceman was found in the mountains mainly because _____.
A.tne melted ice made him visible
B.he was just on a mountain pass
C.two Germans were climbing the mountains
D.he was lying on the ice

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