鱼缸里有12条金鱼，捞走7条后还剩几条？)l5h6U3K7C1y;x,l7A0D-d1T/V'G8@
算式：提示1E-v)J,V*^;P)l5h6U3K7C1y;x,l7A0D-d1T/V'G8@
答：捞走7条后还剩8i,T3v(@:T1L(?4O8o:S9z7D,c5D.}+u条。)l5h6U3K7C1y;x,l7A0D-d1T/V'G8@