According to the ________ revenue model, customers pay a fixed amount, usually monthly, to receive some type of service.
A.subscription fees
B.transaction fees
C.advertising fees
D.affiliate fees
- · 有5位网友选择 B,占比62.5%
- · 有2位网友选择 A,占比25%
- · 有1位网友选择 C,占比12.5%