有二只电容:C1=250微法,C2=50微法,耐压分别为450伏及250伏,将它们串 发布时间:2017-09-19 23:11 │ 来源:www.tikuol.com 题型:单项选择题 问题: 有二只电容:C1=250微法,C2=50微法,耐压分别为450伏及250伏,将它们串联后允许的端电压为()。A.700伏B.450伏C.300伏
题型:单项选择题 She was so angry at ____ he was doing ___ she walked out without a word.A.what…thatB.that…what C.that…that D.what…what 查看答案