题目内容

It is by no means always possible to attach a particular name to scientific developments.

All the scientific developments have their particular names.
B. Every scientific development does not have its particular names.
C. We don't give particular names to scientific developments at all.
D. The scientific developments do not have their particular names.

查看答案

搜索结果不匹配？点我反馈

更多问题

变电所的汇流主母线上安装避雷器是为了防止____________过电压。

A. 直击雷;
B. 侵入波;
C. 反击;
D. 直击雷和反击。

变电所的防雷保护设施有_____________。

A. 避雷针;
B. 避雷器;
C. 保护间隙;
D. 引至出线门型构架的架空地线;

避雷器、针的接地属于工作接地。

A. 对
B. 错

空间数据的类型包括:、。（提示：**数据）