银行保函处理的是（）
A. 货物
B. 当事人的关系
C. 单据
D. 劳务
When issuing a demand guarantee incorporating URDG 758, which ofthe following four provisions reflect the time at which the guarantee becomes effective and irrevocable?
A. The date on the document.
B. The time when the guarantee is sent.
C. The time when it leaves the control of the guarantor.
D. The time when it is received by the beneficiary.
The payment should be made at the ( ), which is wrong?
A. The branch of the office of the guarantor
B. The branch of the office of the counter guarantor
C. Other place in the guarantee or counter guarantee
D. The branch of the office of the advising bank
All guarantees should include the principal debtor，the（ ）and the guarantor
A. beneficiary
B. creditor
C. mortgagee
D. lender
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