A. I(c+v+m)= I c+II c B. I(c+v+m)= I(c+△c)+II(c+△c) C. II(c+v+m)= I(v+m)+II(v+m) D. II(c+v+m)= I (v+△v+m/x)+II(v+△v+m/x) E. I(v+m)= II c
A. I (c+v+m)= I c+II c B. I(c+v+m)= I(c+△c)+II(c+△c) C. I (v+△v+m/x)= II(c+△c) D. II(c+v+m)= I(v+m)+II(v+m) E. II(c+v+m)= I(v+△v+m/x)+II(v+△v+m/x)
A. 对 B. 错