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) .

38（）

A.ever 

B.just 

C.almost 

D.never

在某计算机中，假设某程序的6 个页面如下图所示，其中某指令“COPY A TO B”跨两个页面，且源地址A 和目标地址B 所涉及的区域也跨两个页面。若地址为 A 和 B 的操作数均不在内存，计算机执行该COPY 指令时，系统将产生 （27） 次缺页中断;若系统产生三次缺页中断，那么该程序应有 （28） 个页面在内存。

（28）处填（）。

A．2

B．3

C．4

D．5