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问题 选择题

在直角三角形中不能求解的是（  ）

A．已知一直角边和一锐角

B．已知斜边和一锐角

C．已知两边

D．已知两角

答案

答案：D

由于在直角三角形中，除了直角外，其余5个元素只要知道2个（至少有一条边）就可以求出其余3个，由此可以判定哪个选择项正确．

解：A、能够求解；

B、能够求解；

C、能够求解；

D、没有边，不能求解．

故选D．

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) .

33().

A. safe

B. dead

C. alive

D. hurt
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单项选择题

王某，14岁，智力超群，天资聪明，为某大学学生，则根据《民法通则》，王某是( )。

A．完全民事行为能力人

B．限制民事行为能力人

C．无民事行为能力人

D．可以视为完全民事行为能力人
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