【单选题】
图示电路中电流i等于（）<br /> <img src="https://nimg.ppkao.com/2019-04/wangjing/2019042617160896446.jpg?sign=cdc7fc5adfb388f2733e3a0a49a5cf8d&t=62d751a6" />
A、1A
B、2A
C、3A
D、4A
查看正确答案
A、A.24A<br /> B.-24A<br /> C.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120714071740248.jpg" /><br /> D.<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120714072110716.jpg" />
