问题
单项选择题
D1-30系列继电器可动系统的纵向活动范围应为（）mm。
A、0．1～0．15
B、0．15～0．25
C、0．15～0．2
D、0．2～0．25
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
D1-30系列继电器可动系统的纵向活动范围应为（）mm。
A、0．1～0．15
B、0．15～0．25
C、0．15～0．2
D、0．2～0．25
参考答案：B
| 改正下列句子。 | |
| 1. This house built 100 years ago. 2. Football plays in most countries of the world. 3. Why did the letter send to the wrong address? 4. A garage is a place where cars repair. 5. Where are you born? 6. How many languages are speaking in Switzerland? 7. Somebody broke into our house but nothing stolen. 8. When was invented the bicycle? | __________________ __________________ __________________ __________________ __________________ __________________ __________________ __________________ |