违法行为人对报案人、控告人、举报人、证人等打击报复的，应当加重处罚。
参考答案：错
Though _____ to go to bed many times, the little boy just turned a deaf ear and fixed his eyes on the cartoons. [ ]
A. urging
B. being urged
C. urged
D. having urged
飞机设计师为减轻飞机的重力，将一个钢制零件改为铝制零件，使其质量减少104kg，则所需铝的质量是_____kg．（ρ钢=7.9×103kg/m3、ρ铝=2.7×103kg/m3）
