4棵杨树苗48元，3棵松树苗63元，哪种树苗的单价贵？'F/x-Y*W(Q3g:},j6h)@1i7x2e-P3a,T4B/h.X-e
算式：提示(Q5e9Y2p/a3G9A/t-I/L,L4I,P9o'F/x-Y*W(Q3g:},j6h)@1i7x2e-P3a,T4B/h.X-e
答,a;i3Q-d'S0[9D-f的单价贵。'F/x-Y*W(Q3g:},j6h)@1i7x2e-P3a,T4B/h.X-e