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问题 单项选择题

空气流过轴流式压气机的转子，其绝对速度、相对速度、总温、总压的变化是：（）.

A.绝对速度增大、相对速度减小、总温总压升高

B.绝对速度减小、相对速度增大、总温总压不变

C.绝对速度增大、相对速度减小、总温总压不变

D.绝对速度不变、相对速度减小，总温总压升高

答案

参考答案：A

单项选择题 A1/A2型题

以下患者中是肺结核病的易感人群的是（）

A.矽肺患者

B.心脏病患者

C.糖尿病患者

D.肝移植术后患者

E.胃癌根治术后患者
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单项选择题

In June 1985, two British mountaineers Joe Simpson and Simon Yates made the first-ever climb of the 21,000-foot snow-covered Siula Grande mountain in Peru. It was an exceptionally (26) job, but nothing compared to what was to (27) . Early in the process, Simpson (28) and broke his right knee. Yates could have (29) him but managed to find a way of (30) him down the mountains on a rope in a series of difficult drops. Then Simpson fell into a crevasse and Yates eventually had no (31) but to cut the (32) , completely convinced that his friend was now (33)

In his book on the (34) , Joe Simpson wrote:

(35) I looked at the distant moraines, I know that I must at least try I would probably (36) there among those rocks. If I died, well, that wasn’t so (37) , but I wouldn’t have (38) waited for it to happen. The (39) of dying no longer affected me as it had in the crevasse at first. I now had a chance to (40) it and struggle against it.

The survival of Yates himself was (41) . That Simpson somehow found a way of (42) out of the crevasse after 12 hours and then crawled and (43) himself six miles back to camp, (44) three days and might without food or drink, would be considered as a heroic fiction. But in fact it was so (45) .

28（）

A.bent 

B.fell 

C.raised 

D.survived
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