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【判断题】
PCB元件设计好后，元件的参考点一般设置在元件的中心或者1号引脚。A.
正确
B.
错误
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【判断题】采购与付款流程中,收货与收发票的顺序可以颠倒,即物流与单据流都有可能率先到达企业。类似地,在销售与收款流程,发货与开发票的顺序也可以颠倒,即可以先发货,也可以先开出销售发票。
A.
正确
B.
错误
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