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问题 选择题

离地面高度等于地球半径的高处，重力加速度的大小是地球表面处的（   ）

A．2倍

B．4倍

C．

D．

答案

答案：D

根据，可知，离地面高度等于地球半径的高处的轨道半径为2R，所以重力加速度的大小是地球表面处的1/4

故选D

单项选择题

Jane Mattock, CFA, senior vice president and head of the research department of H&V, Inc., a regional brokerage firm. In preparation for a long business trip, Mattock delegates his authority to Deion Miller, CFA. Which of the following is most accurate to comply with the Professional Conduct Standards（）

A. Mattock is required to advise his supervisor and his compliance department, in writing, of the delegation of his supervisory duties.

B. Mattock still has supervisory responsibility and must instruct Miller about methods to prevent and detect violations of applicable laws, rules, regulations, and the CFA Institute Code of Ethics and Standards of Professional Conduct.

C. Miller still has supervisory responsibility but need not instruct a charterholder like Miller about methods to prevent and detect violations of applicable laws, rules, regulations, and the CFA Institute Code of Ethics and Standards of Professional Conduct.
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单项选择题 A2型题

张某，男性，57岁。反复发作气急痰鸣30余年，平素易感冒，倦怠无力。现症见：气短声低，自汗，怕风，食少便溏，痰多质稀色白，舌质淡，苔白，脉细弱。其中医治法是（）

A.健脾益气，补土生金

B.补肺益肾，化痰止咳

C.补肺纳肾，降气化痰

D.祛风涤痰，降气平喘

E.补肾纳气，降气平喘
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