创建全国文明城市要求“窗口”行业()、()、()、诚信守法、有高效的投诉处理机制()
A.遵守职业道德
B.服务标准和程序公开
C.貌待客
D.服务规范
参考答案:A, B, D
He says “____________” to his parents before he goes to bed.
A.Good evening
B.Goodbye
C.Good day
D.Good night
中间宿主(intermediate host)