安静状态下细胞内钾离子外流属于：\nThe outflow of potassium in the cell in a quiet state belongs to\n
A、单纯扩散Simple diffusion
B、依靠载体转运的易化扩散facilitated diffusion by carrier
C、依靠离子通道转运的易化扩散facilitated diffusion by ion channel transport
D、主动转运active transport