When all the guests have arrived, please don't forget to show them around our school, ________?[ ]

A. do you  

B. don't you  

C. will you  

D. won't you

国家权力的主要特性是______

A．强制力的垄断性

B．有武装力量

C．普遍的约束力

D．主权性

E．有疆域