题目内容

蜗杆传动一般用于两轴线相交90°的场合。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

相啮合的一对齿轮,两轮的齿面接触应力相等。

A. 对
B. 错

＿ antonyms are also called relational opposites.

A. Gradable
B. Complementary
Converse
D. Controversial

Which of the following process of lexical change hasthe Chinese word “十七大”experienced?

Abbreviation
Back-formation
C. Blending
D. Borrowing

"Wife", which used to refer to any woman, stands for "a married woman" in modern English. This phenomenon is known as ____________.

A. semantic shift
B. semantic broadening
C. semantic elevation
D. semantic narrowing