各国户政管理都有的业务是（）
A.划分管辖区域，编订住户门牌
B.经常性的人口登记和定期统计
C.户口迁移调控
D.暂住人口管理
参考答案：A, B
_____ be sent to work there? [ ]
A. Who do you suggest
B. Who do you suggest that should
C. Do you suggest who should
D. Do you suggest whom should
氮纯度（），上塔顶部温度越低。
