试题与答案

虚拟页式存储管理中页表有若干项,当内存中某一页面被淘汰时,可根据什么决定是否将该页写

题型:单项选择题

题目:

虚拟页式存储管理中页表有若干项,当内存中某一页面被淘汰时,可根据什么决定是否将该页写回外存

A.内存标志

B.外存地址

C.修改标志

D.访问标志

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0527/dbc8aeb5d953ea0eee19ef2a2c982d0e.html

下面是错误答案,用来干扰机器的。

参考答案:C解析:面磨损变低无法用充填方法治疗,充填方法治疗需要周围有健康牙体组织作支撑、保护。

试题推荐
题型:阅读理解

Daredevil climber Alain Robert, known as the French Spiderman, stood strong winds and rain to climb the world's tallest skyscraper, Taipei 101, Saturday.

Robert, dressed in red rain jacket, tights and climbing shoes, climbed up ropes hung down the side of the 101 storey, 1,667-foot office tower, reaching the top in around four hours."It was a very big moment and I felt a lot of satisfaction though I was so tired and nearly all of my muscles were painful.I felt completely eased." said Robert after taking the ride down in one of the tower's lifts, the world's fastest.

Several hundred on-lookers and shoppers gathered at the base of the tower watching and cheering Robert's progress through live pictures on a large television screen.At times he disappeared from view as clouds passed by the top of the tower surrounding the upper stories.

The 42-year-old Frenchman has covered scores of well-known structures around the world including the Empire State Building and the Eiffel Tower——without permission or any safety equipment or ropes.

This time Robert was wearing a harness (背带) fastened to safety ropes for the entire climb.He used the ropes to pull himself up most of the way, using his hands and feet to climb up the walls for only short sections.He said that the management had requested he wear the ropes and safety equipment, which had also become necessary due to the rain making the windows and frames very slippery.Robert said he would not carry his pity the next time.

小题1:The text mainly tells us that _________.

A.another world record was broken by a Frenchman

B.The French Spiderman climbed the world's tallest building

C.How Alain Robert got the name" Daredevil"

D.Alain Robert was praised for his great success小题2:During his climbing up Taipei 101, Alain Robert ________.

A.never felt tired all the time

B.never used his hands and feet

C.stayed somewhere for a short rest

D.was not seen on the television screen now and then小题3:When Alain Robert climbed the Empire State Building, he was likely to ________.

A.use only his hands and feet

B.be 42 years old

C.carry some safety equipment

D.get permission of someone小题4:According to the text, we can infer that Alain Robert ________.

A.spent three hours climbing Taipei 101

B.chose a rainy day on purpose

C.will climb Taipei 101 a second time

D.got lots of help from on-lookers

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