The ______ salary of the staff is about $50.

单项选择题What s the meaning of the word defection (Last Line, Para. 6)（）

A．Customers" betrayal.
B．Service defects.
C．Customers" protection.
D．Service advertising.

单项选择题According to the author, when you do a really outstanding job in service, you will（）

A．build a bad reputation
B．break the link with your customer
C．get a positive word-of-mouth advertising for your business
D．earn big money