细胞膜不耗能的过程是：\nThe process of cell membrane energy dissipation is\n
A、Ｋ＋向细胞内转运K+ inflow
B、Na＋向细胞内转运Na+ inflow
C、维持静息电位maintenance of resting potential
D、骨骼肌舒张relaxation of skeletal muscle