[单项选择]某只股票要求的收益率为15%，收益率的标准差为25%，与市场投资组合收益率的相关系数是0.2，市场投资组合要求的收益率是14%，市场组合的标准差是4%，假设处于市场均衡状态，则市场风险价格和该股票的贝他系数分别为( )。 A. 4%；1.25 B. 5%；1.75 C. 4.25%；1.45 D. 5.25%；1.55
第3题:[单选题]以下关于LAN Switch的说法，正确的是（ ） A. LAN Switch主要根据数据包的MAC地址查找相应的IP地址，实现数据包的转发 B. LAN Switch可以不识别MAC地址，但是必须识别IP地址 C. 和共享式Hub比较起来，LAN Switch的一个端口可以说是一个单独的冲突域 D. LAN Switch在收到包含不能识别的MAC地址数据包时，将该数据包从所收到的端口直接送回去 参考答案:C
第7题: [简答题]What are the main characteristics of the Oral Approach And what is the main difference between this Approach and the Direct Method 参考答案:
The main characteristics of the Oral Approach are as follows: (A) Language teaching begins with the spoken language. Material is taught orally before it is presented in the written form. (B) The target language is the language of classroom. Translation should be avoided. (C) New language points are introduced and practised situationally. (D) Vocabulary selection procedures are followed to ensure that common core words are covered. (E) Simple forms of grammar are taught before complex ones, and inductively. (F) Reading and writing are introduced once a sufficient lexical and grammatical basis is established. The Oral Approach insists the new language points be taught situationally. The Direct Method holds the meanings and the target language should be associated directly without referring to students’s first language.
第26题: [单项选择]在社会政策评估标准中，评判一项社会政策行动进展的情况，即已投入的资金和已采取的行动是否完成了预先的计划，这个标准称为( )。 A. 行动标准 B. 收效标准 C. 效率标准 D. 评估标准 参考答案:A 答案解析:[解析] 社会政策评估标准包括行动标准、收效标准、效率标准、价值标准和事实标准。行动标准是指对社会政策实施进展情况作出评价的标准，即已投入的资金和已采取的行动是否完成了预先的计划。
