a是13的因数，那么a等于请选择ABCD9}4|5j/X/R4D:D.q+V;a(C0{.t+F-|,R(Z(x;Z:B7n.T:~*R*p
A．1-|,R(Z(x;Z:B7n.T:~*R*p
B．13-|,R(Z(x;Z:B7n.T:~*R*p
C．1或13-|,R(Z(x;Z:B7n.T:~*R*p
D．26-|,R(Z(x;Z:B7n.T:~*R*p