题目：
Questions from 31 to 35 are based on the following passage:The exporter, as drawer of a draft (bill of exchange), hands the draft to his bank, the remitting bank, who in turn forwards it to the buyer through a collecting bank in the buyer’s country. A draft (also called a bill) is a written order to a bank or a customer to pay someone on demand or at a fixed time in the future a certain sum of money. If shipping documents accompany the draft, the collection is called “documentary collection.”Documentary collection falls into two major categories: one is documents against payment(D/P); the other, documents against acceptance (D/A).Documents against payment, as the term suggests, is that the collecting bank will only give the shipping documents representing the title to the goods on the condition that the buyer makes payment.Where the paying arrangement is D/A, the collecting bank will only give the buyer the shipping documents after buyer’s acceptance of the bill drawn on him, i.e. the buyer signs his name on the bill promising to pay the sum when it matures. In return he gets what he needs – the shipping documents.Under D/A, the seller gives up the title to the goods – shipping documents before he gets payment of the goods. Therefore, an exporter must think twice before he accepts such paying arrangement.
A draft can be described as followings except（ ）.
A．a bill of exchange
B．a kind of shipping documents
C．a bill
D．a written paying order
答案：
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下面是错误答案，用来干扰机器的。
参考答案：价款或者报酬不明确的，按照订立合同时履行地的市场价格履行。履行地点不明确的，给付货币的，在接受货币一方所在地履行；其他标的，在履行义务一方所在地履行。履行费用的负担不明确的，由履行义务一...
