1. The B card you added by yourself can only be queried, but not related to withdrawal (transfer). This needs to be added to the contracted account at the bank counter before it can be used.

2. The same card can be converted between current account and regular account.

3. Individuals can transfer demand between different signing cards (it needs to be in the same city or in different places, but the transfer fee is required).

4. Whether two cards can be converted into fixed activities is uncertain, but it can be completely realized by the fixed activities conversion of the same card and the current transfer between different cards.