well, with the effectiveness of servi ces to defend t he interest s of the masses. T hird, we shoul d strive to do well. To achiev e good pra ctical results, the key is to know the la w, to grasp the la ws and using law s. Office of economi c devel opment , social pr ogress, t here are rul es to foll ow. Only act accor ding to th e law, t o overcome bli ndness and strengthening i nitiative, cre at