下列粒子的结构示意图中表示阳离子的是 请选择ABCD1N2?/A.r1^.a(_4_5N0h1K.P3k2x4R*M9?7C5]1j9v'C0E(b-k7t
A.5N0h1K.P3k2x4R*M9?7C5]1j9v'C0E(b-k7t
B.5N0h1K.P3k2x4R*M9?7C5]1j9v'C0E(b-k7t
C.5N0h1K.P3k2x4R*M9?7C5]1j9v'C0E(b-k7t
D.5N0h1K.P3k2x4R*M9?7C5]1j9v'C0E(b-k7t