题目内容

急性胰腺炎时，尿淀粉酶升高的时间一般为发病后

A. 2～6h
B. 2～12h
C. 12～24h
D. 24～36h
E. 36～72h

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简述如何区别投资和证券投资。

简述封闭式基金的价格是如何决定的。

简述债券评级的目的和原则。

(1) Good despatched notes are matched to sales invoices
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A. 1 and 2
B. 2 and 4
C. 2 and 3
D. 1 and 4