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问题 单项选择题 A1型题

在流行病学研究中，混杂因素与下列哪些因素有关（）

A.与暴露因素有关，与疾病无关

B.与疾病有关，与暴露因素无关

C.与病例有关，与对照无关

D.与暴露有关，与非暴露无关

E.与疾病和暴露因素都有关

答案

参考答案：E

判断题

申请成立报关企业应由海关总署批准。( )
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单项选择题

Based on the AIMR Standards of Professional Conduct, which of the following statements is least likely to be a violation of Standard Ⅲ(D) , Prohibition against Misrepresentation（）

A. An analyst tells a prospective client that investment grade bonds involve less default risk than junk bonds. 

B. A bond trader tells a client that he can assist the client in all the client’s investment needs: equity, fixed income, and derivatives. 

C. An investment manager recommends to a prospective client an investment in mortgage IO strips because they are guaranteed by an agency of the federal government.
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