班集体的正常秩序是维持和控制学生在校生活的基本条件,主要包括必要的规章制度、共同的生活准则,以及一定的____。
参考答案:活动节律
— _______ does it take to get to your home town from here by coach?
— Well, it takes a little over three hours to get there.
A.How soon
B.How much
C.How long
D.How far
通信导航监视设施的雷电防护应采取分区保护的措施。