晶体管接近开关是当有某物体与之接近到一定距离时就发生动作信号,用以控制()或逻辑元件 发布时间:2020-02-27 19:33 │ 来源:www.tikuol.com 题型:单项选择题 问题: 晶体管接近开关是当有某物体与之接近到一定距离时就发生动作信号,用以控制()或逻辑元件。A、接触器B、线圈C、继电器D、开关
题型:单项选择题 根据首字母提示完成句子1. The cat c_____ the mouse but could not catch it.2. Don't make so much n_____, my father is working.3. The reporter i_____ the singer after the performance.4. "Z" is the f_____ letter in the alphabet.5. It's said that the price of chicken has d_____ by¥2.5 a kilo. 查看答案