单项选择题

定点符号代表的是局限于该点上的数据，它必须严格定位在这个点上；符号大小表示要素的数量指标。

A．对
B．错

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单项选择题

There are several _______ for promoting people who don't have formal qualifications.

A．proceedings
B．precedents
C．redundancies
D．descendants

The SCOR model is a method that uses standard symbols to analyze the characteristic elements of the supply chain from bottom to top, and effectively identify the supply chain and its management.

答案：错误