【单选题】一台单相降压变压器的一次侧电压为4000V,变压比K为20,则二次侧电压为( )。
【单选题】… you got the news that the rocket was sent up successfully? ……From the radio.
【单选题】一台单相降压变压器的一次侧电压为3000V,变比K为15,则二次侧电压为
【单选题】The news the rocket was successfully launched spread all over the country.
【单选题】According to the news, who claimed responsibility for the rocket attack?
A.
A 36-year-old Israeli man.
B.
Palestinian militants.
【单选题】一台单相降压变压器的一次侧电压为3000V,变比K为15,则二次侧电压为
【单选题】荣氏兄弟为天下布芳馨的宏愿,倚山植梅,以梅饰山,建造。