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【单选题】
基准一般分为（）大类。A.
设计基准和工艺基准两
B.
定位基准、测量基准和装配基准三
C.
设计基准、工艺基准、定位基准、测量基准和装配基准
D.
粗基准、精基准两
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【单选题】Under payment in advance, the importer makes _______ to the supplier before the shipment of goods is done.
A.
full payment
B.
partial payment
C.
no payment
D.
most payment
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