需求分析过程中，对算法的简单描述记录在( )中。
A．层次图
B．数据字典
C．数据流图
D．IPO图
参考答案：D
以下哪个不属于石川七大基本质量工具？（）
A.控制图
B.鱼骨图
C.统计抽样
D.流程图
Which of the following statements is most accurate()
A. Forward contracts require that both parties to the transaction have a high degree of creditworthiness.
B. Forward contracts are marked to market daily.
C. Futures contracts have more default risk than forward contracts.
