正弦电压波形如图所示,其角频率<img src="https://nimg.ppkao.com/2017-07/luoyueping/2017072116071860027.jpg?sign=3afd5a10aea3554238e0cc68746e53ea&t=62d4b481" />为()rad/s。<br /> <img src="https://nimg.ppkao.com/2017-07/luoyueping/2017072116072158519.jpg?sign=35da3caafdb950f5153bed9de955d2b8&t=62d4b481" /><br />
A、200π
B、100π
C、0.02π
D、2π