【单选题】假设已经定义好了一个类teacher,现在要定义类dteacher,它是从teacher保护派生的,定义正确的是()。 A. class teacher::teacher protected{…} B. class teacher::teacher public{…} C. class teacher:: protected teacher{…} D. class teacher::public teacher{…}

6 The students met their 'English teacher/English 'teacher on the street. A: 'English teacher B: English'teacher

__1__ The teacher is always nervous. __2__ The teacher is kind and patient. __3__ The teacher is nice-looking. __4__ The teacher is hard-working.

Mr. Li is ____ as Mr. Wang. A: a good teacher B: an as good teacher C: as good a teacher D: as a good teacher

以下新建对象的语句中,正确的一项是( )。 A: Teacher t; B: Teacher t=new<br/>Teacher (); C: Teacher (t)=new<br/>Teacher (); D: Teacher (t);

In front of the classroom______. A: is the table for the teacher B: B. the table is there for the teacher C: it is a table for the teacher D: D. has a table for the teacher

学校主页网址www.buu.edu.cn中的cn表示（）。 A: 顶级域名为cn B: cn为机构名 C: cn为二级域名 D: cn为服务器名

聚乙烯醇纤维SX2模量范围（） A: 280-320 CN/dtex B: 300-340 CN/dtex C: 320-360 CN/dtex D: 340-380 CN/dtex

查看teacher表的表结构，语句为（） A: select * from teacher; B: show create table teacher; C: show table teacher; D: desc teacher;

Please fill the blanks of the following sentence from William Arthur Ward. The mediocre teacher ______. The good teacher _________. The superior teacher ____________. The great teacher _____________.