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问题 填空题

某二叉树中度为2的结点有18个，则该二叉树中有 【2】 个叶子结点。

答案

参考答案：S

解析： 在任意一棵二叉树中，度为0的结点(即叶子结点)总是比度为2的结点多—个。

单项选择题

Carol Corky, CFA, is a senior portfolio manager for Universal Management. Universal Management manages five funds, each with a large-capitalization investment strategy. When choosing portfolios under its large-capitalization investment strategy for the purpose of achieving compliance with the Global Investments Performance Standards (), which of the following is most accurate Universal Management is most likely required to include:（）

A. all discretionary portfolios currently managed under the large-capitalization investment strategy.

B. all discretionary portfolios currently and historically managed under the large-capitalization investment strategy.

C. all discretionary and non-discretionary portfolios currently and historically managed under the large-capitalization investment strategy.
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单项选择题 A2型题

妇女怀孕、生育和哺乳期间，按照国家有关规定享受特殊（），并可以获得帮助和补偿。

A.社会保险

B.医疗保险

C.劳动保护

D.生育保险

E.劳动保障
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