供应直肠、肛管的动脉中,最重要的是()A.骶中动脉 B.直肠上动脉 C.直肠下动脉

题型:单项选择题

问题:

供应直肠、肛管的动脉中,最重要的是()

A.骶中动脉

B.直肠上动脉

C.直肠下动脉

D.阴部内动脉

E.肛管动脉

考点:普通外科学(医学高级)直肠肛管疾病直肠肛管疾病题库
题型:单项选择题

补益剂服药时间宜( )

A.食后服

B.空腹服

C.食前服

D.临睡服

题型:单项选择题

赶空气不净会引起()。

A、放瓦斯时爆炸

B、预热速度降低

C、石油焦质量不合格

D、设备氧化严重

题型:单项选择题

Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone was looking right at you!

Parapsychologists (灵学家) say that humans have a natural ability to sense when someone is looking at them. To research whether such a “sixth sense” really exists, Robert Baker, a psychologist at the University of Kentucky, performed two experiments.

In the first one, Baker sat behind unknowing people in public places and stared at the backs of their heads for 5 to 15 minutes. The subjects were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later, when he questioned the subjects, almost all of them said they had no sense that someone was staring at them.

For the second experiment, Baker told the subjects that they would be stared at from time to time from behind a two way mirror in a laboratory setting. The people had to write down when they felt they were being stared at and when they weren’t. Baker found that the subjects were no better at telling when they were stared at and when they weren’t. and they were no better at telling when they were stared at than if they had just guessed.

Baker concludes that people do not have the ability to sense when they’re being stared at. If people doubt the outcome of his two experiments, said baker, “I suggest they repeat the experiments and see for themselves.”

小题1:The purpose of the two experiments is to                                 .

A.explain when people can have a sixth sense

B.show how people act while being watched in the lab

C.study whether humans can sense when they are stared at

D.prove why humans have a sixth sense小题2:In the first experiment, the subjects                             .

A.were not told that they would be stared at

B.lost their sense when they were stared at

C.were not sure when the would be stared at

D.were uncomfortable when they were stared at小题3:What can be learned from the passage?

A.People are born with a sixth sense.

B.The experiments support parapsychologists’ idea.

C.The subjects do not have a sixth sense in the experiments.

D.People have a sixth sense in public places.

题型:单项选择题

患者男性,38岁,尿毒症,血压185/110mmHg,心率60次/分,ECG显示ST-T波改变,维持血液透析4年,拟行同种异体肾移植手术。

患者最可能有()。

A.慢性气管炎

B.肺水肿

C.脑水肿

D.贫血

E.肝功能衰竭

题型:单项选择题

计算机硬件可分为主机和()两部分。

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