问题
单项选择题
要保证一个程序在主存中被改变了存放位置后仍能正确执行，则对主存空间应采用( )。
A．静态重定位
B．动态重定位
C．动态分配
D．静态分配
答案
参考答案：B
解析：动态重定位是在程序执行时对其发出的地址逐条进行翻译。因此，不论程序是否改变存放位置，只需要对翻译机制进行更新即可正确执行。
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要保证一个程序在主存中被改变了存放位置后仍能正确执行，则对主存空间应采用( )。
A．静态重定位
B．动态重定位
C．动态分配
D．静态分配
参考答案：B
解析：动态重定位是在程序执行时对其发出的地址逐条进行翻译。因此，不论程序是否改变存放位置，只需要对翻译机制进行更新即可正确执行。
Like many people in the UK, the team of BBC learning English were 1 and sad at the news of the earthquake in Sichuan Province. They would like to extend their condolences(吊唁) to those affected by this terrible natural disaster. Below was their special report on the earthquake and the 2 operations taking place. Rescue efforts were underway in Sichuan Province following the terrible 3 , which measured 7.9 on the Richter Scale. According to Xinhua news agency, nearly 15,000 4 died in the disaster, with as many as 24,000 more 5 under ruins and another 14,000 6 . Chinese troops(军队) were 7 to carry out the rescue operations, and emergency aid was air-dropped into areas that were cut off by the 8 . Because of the bad weather, in some places 9 had to go into the disaster area on foot and search for trapped survivors by hand as roads were 10 . Some people of the provincial capital Chengdu chose to 11 in tents and government shelters for fear of aftershock causing 12 damage. One witness in Chengdu said that the people there were helping the relief work by donating food and water for those affected in the 13 . Although full casualty figures (伤亡数字) were not yet 14 , it was clear that the earthquake was the 15 to strike China after the Tangshan earthquake of 1976.
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