下列叙述正确的是( )。A.算法的执行效率与数据的存储结构无关 B.算法的空间复杂

题型:单项选择题

问题:

下列叙述正确的是( )。

A.算法的执行效率与数据的存储结构无关

B.算法的空间复杂度是指算法程序中指令(或语句)的条数

C.算法的有穷性是指算法必须能在执行有限个步骤之后终止

D.以上3种描述都不对

考点:计算机等级考试ACCESS二级ACCESS笔试
题型:单项选择题

阅读下面的短文,将文中划线部分译成汉语或英语。

     Students learn their lessons in class. Teachers teach them. 1.Students sit in the classroom listening to

the teacher. This is the common way of learning. Is this the only way for students to learn? Of course not.

 2. 有一些其他的学习方式。Besides listening to teachers, students can learn something by themselves.

As you know, many students in schools have found new ways of learning things by themselves in class.

The first thing is to read something they are interested in or they have to read. The second is that before

they ask others, they must ask themselves questions that they don’t understand. The third is, 3. to answer

the questions themselves by thinking hard, by reading the text or other books. If they still have questions,

they may show them to the class. Any student or the teacher who can deal with the questions may answer

them in class. 4. 学生们可以互相学习。They are learning by working together. 5.They have found

great success in their study. If you keep doing in this way for a long time, you’re sure to succeed in your

study, too.

1._____________________________________________

2._____________________________________________

3._____________________________________________

4._____________________________________________

5._____________________________________________

题型:单项选择题

双机滑移法吊装设备时,两台起重机应站在设备的()。

A.一边

B.两面三刀侧一前一后

C.两边

D.头、尾两侧

题型:单项选择题

《中国历代经济变革得失》一文中说:“在政治经济史的意义上,科举制是对历代世族模式的一次彻底‘反动’。”该观点认为科举制()

A.切断了世族繁衍的制度基础

B.改变了地主阶级的统治基础

C.是历代政府选官的唯一途径

D.让世族彻底退出了历史舞台

题型:单项选择题

润滑油乳化后变成()色。

A、红

B、白

C、透明

D、黑

题型:单项选择题

与液压传动、电气传动相比,机械传动的优点有哪些?

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