电源电压不随负载变化称为(),输出的电流不随负载变化称为()。A、信号源 B、电压源 发布时间:2019-11-13 04:22 │ 来源:www.tikuol.com 题型:多项选择题 问题: 电源电压不随负载变化称为(),输出的电流不随负载变化称为()。A、信号源B、电压源C、电流源D、电源
题型:多项选择题 As second-hand smoking is more harmful and dangerous, people want a total _____against smoking in public.A.banB.brakeC.breakthroughD.boundary 查看答案
题型:多项选择题 帮助问句选择合适的答语。( ) 1. What time is it?( ) 2. Where do you live?( ) 3. Who is in the classroom?( ) 4. What's your address?A. A teacher.B. It's 8:00. C. I live in the city.D. My address is 12 Zhongshan Road. 查看答案