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问题 单项选择题

教师知识结构的核心是教师的( )。

A．专业知识
B．教育学知识
C．心理学知识
D．相关学科知识

答案

参考答案：A

解析： 教师的专业知识是教师知识结构的核心。

问答题

KNO3是农业上常用的一种化肥，KNO3中氮元素的化合价是（　　）

A．﹢3

B．﹢4

C．﹢5

D．﹢2
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问答题 论述题

Assume you were Jack, Director of International Investment. Briefly explain the ranking principle for capital allocation when the capital is limited, and calculate the present value index for Project A, Project B, and Project C. With a total investment of l billion Hong Kong dollars (HKD 1 000 000 000) , determine the available combinations of project investment options. Lastly, suggest to the management the best investment decision and provide a reason to support your decision.
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