简述公安机关组织属性中的“四个坚持、四个防止”。
参考答案：
I _______ all the cooking for my family, but recently I have been too busy to do it.
A．will do
B．do
C．am doing
D．had done
行政机关实施行政许可、行政处罚等行政执法行为应严格依照什么权限进行？
