A. I(v+m)>IIc B. II(c+m-m/x) >I(v+m/x) C. I(v+m)+II(v+m) >II(c+v+m) D. I(c+v+m) > Ic+IIc E. II(c+m-m/x) >I(v+m)
A. 对 B. 错