填空0q+?)J:q7p,Q(R9D5f+r'J'O7E.q
140千克比9J-v4D8Z(k6u9x9u千克多40%； 5千克减少20%后是:[*@/S1c/o;W7B千克0q+?)J:q7p,Q(R9D5f+r'J'O7E.q