假没内存管理采用可变式分区分配方式,系统中有五个进程P1~P5,且某一时刻内存使用情

题型:单项选择题

问题:

假没内存管理采用可变式分区分配方式,系统中有五个进程P1~P5,且某一时刻内存使用情况如下图所示(图中空白处表示未使用分区)。此时,若P5进程运行完并释放期占有的空间,则释放后系统的空闲区数应(7);造成这种情况的原因是(8)

(8)处填()。

A.无上邻空闲区,也无下邻空闲区

B.有上邻空闲区,但无下邻空闲区

C.有下邻空闲区,但无上邻空闲区

D.有上邻空闲区,也有下邻空闲区

考点:计算机软件水平考试中级软件设计师计算机水平考试中级软件设计师2013年上半年上午真题
题型:单项选择题

下列词语中划线的字,读音全对的一组是(   )

A.颠噬niè薄(fēi)一piē战战兢兢jīng

B.拾zhē染rú盛fù蹙cuán酒阑灯xiè

C.浸板zhēn然àn两yè自怨自 ài

D.chēn视纨绔wán kù桂zhào桎身不恤yǔn

题型:单项选择题

密度为0.6×103千克/米3的木块漂浮在水面上时,露出的体积是V1,漂浮在密度为0.8×103千克/米3的煤油中,露出的体积为V2,那么V1和V2的关系是(  )

A.V1>V2

B.V1=V2

C.V1<V2

D.3V1=4V2

题型:单项选择题

In 1986, when Monty Reed was a member of the Army Rangers (黑鹰突击 队), he had an accident. "It was a night jump, and we were jumping low," he recalls. "We were training. Somebody got too close to my parachute (降落伞)."The parachute below blocked Reed’s air and his parachute failed to open. Reed crashed a hundred feet to the ground, breaking his back in five places.

The next morning, Reed could not move. "Doctors said it was likely that I would never walk again." Reed stared out of his hospital window, wondering what the future would be like. It was the saddest moment of his life. "The experts are telling me my body doesn’t work! What am I supposed to do?" he thought.

To distract (转移注意力) himself, he picked up a book: Robert Heinlein’s Starship Troopers. The science-fiction describes a set of man-made muscles that would allow people to carry 2,000 pounds. He thought that if he could build something like that, it might be able to lift him out of his wheelchair. So he began his project and finally succeeded in building a set of robot legs. Several years later, he made an amazing recovery and was able to get up and walk away from his wheelchair. He even jumped out of an airplane again to celebrate.

Reed wanted to do something for others with the second chance that life had given him. He has now perfected the robot legs that can get the injured, the elderly and the paralyzed (瘫痪的) out of their wheelchairs. Now he has started his own company to make the legs. "I’ve seen them compete in marathons and go swimming and mountain climbing," he said. "So never give up!"

小题1:Monty had an accident in 1986 because_______.

A.his feet hit the ground too hard

B.his parachute was under another person’s

C.another person’s parachute stopped his from opening

D.he was training to jump at night小题2:Monty started to read Starship Troopers to ______.

A.create a new kind of wheelchair for himself

B.discover how to make man-made muscles

C.learn how to jump out of an airplane

D.stop himself from thinking about his pain小题3:Which of the following is TRUE about Monty?

A.He didn’t lose heart in the face of difficulty.

B.He is fond of reading science fiction.

C.He spent the rest of his life in a wheelchair.

D.He didn’t believe what the doctors said.小题4:We can learn from the passage that Monty’s goal is to ______.

A.become a famous writer like Robert Heinlein

B.return to the Army Rangers and continue with his jumps

C.compete in games and marathons and go swimming

D.help more patients in wheelchairs to recover

题型:单项选择题

Hz是声音什么的单位()

A.波长

B.响度

C.相位

D.频率

E.强度

题型:单项选择题

皮肤活力鉴定方法中,下列哪项不正确

A.美蓝染色
B.胎蓝染色
C.皮肤耗氧量法
D.琥珀酸脱氢酶法
E.皮块培养法

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