可以把具有相同属性的一些不同对象归类,称为【 】。
参考答案:对象类
解析:类描述的是具有相似性质的一组对象;把具有相同属性的一些不同对象归为类,我们称之为对象类。
第二节短文改错(共10小题;每小题1分,满分10分)
假设英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的如下作文。文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除和修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线划掉。
修改:在错的词下划一横线,并在其下写出修改后的词。
注意: 1、每处错误及其修改、增加、或删除仅限一词。
2、只要求修改10处,多改无效。
Dear Mr. Smith,
I’m a senior school student. I do quite well my studies, but I have a serious problem that trouble me all the while. It is the relationship between my mother and I .My dear mother is an university professor, who works very much hard. She’s always strict with me, but has a little time to talk with me. I show respect for her and I’m a little afraid of her because she loses her temper easily. I don’t know how to communicate with her. Maybe it’s because we have seldom sat down and exchange our feelings and thoughts.I hope we can know more about each other and understanding each other better. I did hope we will be closer. What can I do?
Yours sincerely
Leslie
局部放电测量装置宜采用电容(或电阻)分压器与低压电压表,其测量误差不应大于()。
A.正负1%
B.正负2%
C.正负3%
D.正负4%