在多道程序系统中,为了保证公共变量的完整性,各进程应互斥进入相关临界区。所谓临界区,

题型:单项选择题

问题:

在多道程序系统中,为了保证公共变量的完整性,各进程应互斥进入相关临界区。所谓临界区,是指 (21) 。多道程序的引入主要是为了 (22) 。操作系统采用SPOOLing技术提高了 (23) 的利用率。在操作系统中, (24) 是以时间换取空间的技术。系统出现死锁的原因是 (25)

A.一个缓冲区

B.一段数据区

C.同步机制

D.一段程序

考点:计算机软件水平考试中级网络工程师网络工程师
题型:单项选择题

某校八(五)班学生在学完第二单元《公共利益》后,决定召开一个有关公共利益的主题班会,请你参与:

(1)公共利益应符合哪些标准,说一说。

________________________________________________________________________________

(2)我们的生活离不开公共利益,请你说说原因。

________________________________________________________________________________

________________________________________________________________________________

题型:单项选择题

下列腧穴为荥穴的是

A.鱼际

B.少府

C.大都

D.然谷

E.太冲

题型:单项选择题

Are you going to high school to go on with your study What will you do if you can’t Don’t worry. Vocational schools are open for you because our country is in need of people with special skills.

Compared with common high schools, vocational schools have more advantages. Firstly, in order to promote the development of vocational education, our country spends a lot of money on it. So you need to pay only a smaller half of the school fee. Secondly, in here you have already started learning practical skills that you can use all your life. But some other students may still worry about how to spend the long three years at high schools. Why Because they didn’t choose the school that suits them. And finally, when they are still wondering where to go, you are already able to live on your own hands proudly. And perhaps it won’t be long before you are on the road to success.

People take different roads because they have different potentials. So different students should choose different schools. Go to high school if you think that you can go farther on that road. Choose a key high school if you are lucky enough to have the chance. Enter a vocational school if you are interested in the lessons there and you are better at making things with your hands.

In a word, think carefully and see what kind of person you are. Remember, always choose things that suit you.

What does the second paragraph talk about()

A.The future of vocational schools.

B.How to learn a skill.

C.The advantages of vocational schools.

D.How to succee

题型:单项选择题

深圳市在对口援疆过程中,充分借助企业力量,引导深圳及外资企业西进喀什,建立“产业飞地”,聚集能量,形成新的发展合力,促进新疆维吾尔自治区经济和社会的发展,创造了深圳特色的企业援疆模式。这体现了我国[ ]

A、坚持民族平等的原则

B、坚持民族团结的原则

C、实行民族区域自治制度

D、坚持各民族共同繁荣的原则

题型:单项选择题

超声诊断右室双出口哪一项是错误的()

A.主动脉骑跨<50%

B.右室壁增厚

C.右室增大

D.主动脉骑跨>70%

E.室间隔缺损

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