证卡签到优点是方便，缺点是不便保存查找，适合于大中型会议。( )

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A解析：Trade (operating) debt is reported in the balance sheet at the expected undiscounted value. Customer advances are satisfied by providing goods or services. Thus, customer advances can be viewed as a prediction of future revenues rather than expected cash outflows.