题目内容

传统的集合运算包括______。

A. 并运算
B. 交运算
C. 选择运算
D. 笛卡尔积
E. 投影运算

查看答案
更多问题

简述阳台设计时应满足的要求。

Who is Otto Jespersen?

A. He is a Danish scholar.
B. He is an English judge in India.

According to Otto Jepersen, what is the cause for English to become what it is?

A. Because its long developing history.
B. It's the result of the great respecters of the liberties of each individual.

What is English language in the author's opinion?

A. English is the tongue of the common man.
B. English is the special preserve of grammarians, language police, teachers, writers and the intellectual elite.

答案查题题库