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【单选题】
在进行轴的疲劳强度计算时,若同一截面上有几个应力集中源,则原理集中系数应取为 。A.
各应力集中系数之和
B.
其中较大者
C.
其中较小者
D.
平均值
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反馈参考答案：
举一反三
【简答题】"Clean collection" means collection of ______ not accompanied by commercial documents.
【单选题】— Do you have a headache? — ___ . [ ]
A.
Yes, I have
B.
No, I have not
C.
Yes , I do
D.
Yes, I don’t
【简答题】水资源具有以下特点：（）
【单选题】Which of the following is clean collection? ( )
A.
collection of financial documents accompanied by commercial documents.
B.
collection of commercial documents not accompanied by financial documents.
C.
collection of financial documents not accompanied by commercial documents.
D.
collection by B/L.
【单选题】In an export business, 50% L / C and 50% D / P shall be adopted for payment. In order to secure the collection of foreign exchange, it shall be stipulated in the contract ( )
A.
to draw two drafts , each with a set of commercial documents
B.
to draw two drafts , clean draft under L/C,documentary draft under collection
C.
to draw two drafts , clean draft under collection ,documentary draft under L/C
D.
to draw two drafts , clean draft used under both L/C and collection
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