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青年男性，平时血压正常，3年来一遇情绪激动时便出现头疼、心悸、出汗、心前区紧迫感，视物模糊，测血压为220／140mmHg，每次持续10分钟左右。

综上所述考虑该患者最可能的诊断是（）。

A.心脏病

B.焦虑症

C.原发性高血压

D.嗜铬细胞瘤

E.植物神经功能紊乱

答案

参考答案：D

单项选择题

Scott LaRue is a portfolio manager for Washington Advisors. Washington has developed a proprietary model that has been thoroughly researched and is known throughout the industry as the Washington model. The model is purely quantitative and screens stocks into buy, hold, and sell categories. The basic philosophy of the model is thoroughly explained to clients. The director of research frequently alters the model based on rigorous research-an aspect that is well explained to clients, although the specific alterations are not continually disclosed. Portfolio managers then make specific sector and security holding decisions, purchasing only securities that are indicated as "buys" by the model. LaRue has conducted some research on his own and feels the model would be improved by adding some factors. Based on his research, he applied his own version of the model, which is occasionally in conflict with the Washington model. LaRue discloses his model to his own clients but not to his supervisor. LaRue is:（）

A. violating the Standards by not considering the appropriateness of the recommendations to clients.

B. violating the Standards by not being objective.

C. violating the Standards by not having a reasonable and adequate basis for his investment recommendation.
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单项选择题

（）是减轻摩擦磨损的有效手段。

A、紧固

B、清洁

C、润滑

D、防腐
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