|
(多选题)7: The cost and value of middlemen are ___.
A: time utility
B: place utility
C: information utility
D: form utility
(责任编辑：admin) |
|
(多选题)7: The cost and value of middlemen are ___.
A: time utility
B: place utility
C: information utility
D: form utility
(责任编辑：admin) |
