一定条件下,强电解质 AB 的水溶液中,阳、阴离子运动速率的关系为 v + =3 v - , 忽略水解离的影响,则 A + 迁移数 t + = ( )。
A.
0.75
B.
0.5
C.
0.25
D.
0.1
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