牛乳的PH范围一般为（）。
A、6.5-6.7
B、6.6-6.7
C、6.5-6.8
D、6.6-6.8
参考答案：A
---- I’ve had enough bread. Would you like _______ ?
---- No, thanks.
A．a few more
B．one more
C．another more
D．some more
My mother _____ me not to go to Athens to watch the 2004 Olympic Games , but she failed .
A．persuaded
B．tried to persuade
C．made
D．hoped
