公安政策是由党和国家制定的，体现了党和国家的意志。 ( )
参考答案：对
No sooner ____ than it began to rain heavily.[ ]
A. the game began
B. had the game began
C. did the game begin
D. had the game begun
刚性防水屋面工程密封材料嵌缝质量检验主控项目有哪些
