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【单选题】
以SO2-4沉淀Ba2+时，加入适量过量的SO2-4可以使Ba2+沉淀更完全，这是利用( )。A.
盐效应
B.
酸效应
C.
配位效应
D.
共同离子效应
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反馈参考答案：
举一反三
【判断题】Product availability reflects a firm’s ability to fill a customer order out of available inventory.
A.
正确
B.
错误
【简答题】What are the pros and cons of the various measures of product availability?
【判断题】A reduction in supply can help dramatically reduce safety inventory required without hurting product availability.
A.
正确
B.
错误
【判断题】Product availability reflects a firm’s ability to fill a customer order out of available inventory.
A.
正确
B.
错误
【单选题】Which of the following is not a measure of product availability?
A.
Customer fill rate
B.
Product fill rate
C.
Order fill rate
D.
Cycle service level (CSL)
【判断题】The required safety inventory grows rapidly with a decrease in the desired product availability.
A.
正确
B.
错误
【简答题】正垂线法用来观测混凝土及砌石坝的 。
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