根据质量守恒定律，铁生锈后其质量将请选择ABCD-N.b/_1r4b/_*`0i4Q)D7T/Y,S3y1h5M)m.f7q(T-D7R-R*}.L/r)M3a*K)m1g)h
A．增重1h5M)m.f7q(T-D7R-R*}.L/r)M3a*K)m1g)h
B．减轻1h5M)m.f7q(T-D7R-R*}.L/r)M3a*K)m1g)h
C．不变1h5M)m.f7q(T-D7R-R*}.L/r)M3a*K)m1g)h
D．无法判断1h5M)m.f7q(T-D7R-R*}.L/r)M3a*K)m1g)h