搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下列关于螺口灯头的接线叙述有误的是( )。

A．相线(火线)应接在中心触点的端子上

B．灯头的绝缘外壳不应有损伤和漏电

C．灯头开关手柄可以有裸露的金属部分

D．零线接在螺纹端子上

答案

参考答案：C

句型转换

按要求改写句子。

1. I like to read books.(对画线部分提问)

   ____________________________________

2. Chinese is my favourite subject.(对画线部分提问)

   ____________________________________

3. I like apples. I like grapes.(合并为一句)

   ____________________________________

4. This is a yellow hat.(改为一般疑问句)

   ____________________________________

5. I like socks,  too.(改为否定句)

   ____________________________________
查看答案
单项选择题

Software configuration management (SCM) is the task of tracking and controlling changes in the software. Configuration management practices include configuration identification, change control, ( ) and configuration audit.

A. milestones marking

B. status reporting

C. stakeholder management

D. quality audit
查看答案