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问题 解答题
计算
4a
a2-1
+
1+a
1-a
．
答案

4a
a2-1
+
1+a
1-a

=

4a
(a+1)(a-1)
-
(1+a)2
(a+1)(a-1)

=

-(a-1)2
(a+1)(a-1)
=
1-a
a+1
．

判断题

尸体料理费、尸体冷藏费不属于社保基金偿付范围。
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单项选择题

The investment-banking department of the XYZ Brokerage House often has information that would be of significant use to the firm’s brokerage clients. In order to conform to CFA Institute Standards of Professional Conduct, which of the following policies should XYZ adopt According to Standard:（）

A. Ⅱ (A), Material Nonpublic Information, XYZ should encourage their investment banking clients to publicly disseminate this information. 

B. Ⅲ (B), Fair Dealing, all clients should be informed of the information at the same time. 

C. Ⅱ (A), Material Nonpublic Information, XYZ should establish physical and informational barriers within the firm to prevent the exchange of information between the investment banking and the brokerage operations.
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