题目5单选题
电路如图所示,已知<img src="https://tihai-oss-cloud.itihey.com/img/0608a856d30b72ff213ca8577999803e.png">,关于电流<img src="https://tihai-oss-cloud.itihey.com/img/ae389dccbb685c52b36bc314dd88ba8b.png">的实际方向,下列说法正确的是().<img src="https://tihai-oss-cloud.itihey.com/img/d82d3f32de56d743821856256f5ad809.png">A. 由A流向BB. 由B流向AC. <img src="https://tihai-oss-cloud.itihey.com/img/cb0e3b626c2ac1c3cbc99a26e5fcf4f6.png">时,由B流向AD. <img src="https://tihai-oss-cloud.itihey.com/img/cb0e3b626c2ac1c3cbc99a26e5fcf4f6.png">时,由A流向B