Can you give at least five major types of credits?

Can you give at least five major types of credits?
【正确答案】：The major types of credits are given as follows:1)clean credit and documentary credit;2)revocable credit and irrevocalbe credit;3)confirmed credit and unconfirmed credit;4)sight credit and usance credit;5)transferable credit and non-transferable credit6)non-draft credit ;7)revolving credit;