下列哪种对公业务收费协议不能设置收费优惠？（）
A.定期自动收费协议
B.账户协议
C.客户协议
D.套餐协议
参考答案：A
小题1:From the first sign we know we can not_______ in the lake.
A．stay for long
B．fish
C．swim
D．boat小题2: Helen is six years old, and she's got a bad cough. She should take_______ a day.
A．0.5 teaspoonful
B．2 teaspoonfuls
C．1.5 teaspoonfuls
D．3 teaspoonfuls小题3:The fast food shop isn't open_______.
A. at 9:00 P.M. on Saturday B. at 10:00 A. M. on Friday
C. at 9:00 P.M. on Thursday D. at 10:00 A. M. on Sunday.
调查点污染源排放特点时，不需要了解的是( )。
A．排水总量
B．排放口在断面上的位置
C．排放形式，分散排放还是集中排放
D．排放口的平面位置图(附近污染平面位置图)及排放方向
