问题：
[多选题]Which descriptions about the Multi-class SOQN of AVS/RS are incorrect ?()
AEach travel scenario for storage or retrieval traction corresponds to a customer class.
BThe routes of different customer class in AVS/RS must be different.
CThe routing probability of different customer class is independent to the occurrence probability of different customer.
DThe routing probability of different customer class depends on the occurrence probability of different customer.
