题目：
The risk to the exporter in open account trading is that by surrendering the shipping documents to the importer, he（）before he has obtained payment for them.
A．is in control of the goods
B．loses control of the goods
C．retains control of the goods
D．gives up control of the goods
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B
