A、Business to-consumer(B2C)
B、Business processes that support buying and selling activities(B2E)
C、Business-to-business(B2B)
D、Governments to-government(G2G)
A.(1)(3)
B.(2)(4)
C.(1)(3)(4)
D.(1)(2)(3)(4)
A.外贸型B2B电子商务
B.内贸型 B2B电子商务
C.垂直B2B电子商务
D.水平B2B电子商务