问题描述：
1.(Points:2.0)
Phyllis is one of the top Ford salespeople.For about every 4 people that she talks to,she sells a car.This is BEST defined as:
a.a variable interval schedule
b.a variable ratio schedule
c.a fixed interval schedule
d.a fixed ratio schedule
Phyllis is one of the top Ford salespeople.For about every 4 people that she talks to,she sells a car.This is BEST defined as:
a.a variable interval schedule
b.a variable ratio schedule
c.a fixed interval schedule
d.a fixed ratio schedule
问题解答：
我来补答展开全文阅读