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【单选题】
为防治冠心病，该社区卫生服务中心所采取的下列措施中，属于第一级预防的措施是A.
进行社区居民冠心病筛查
B.
传减少饮食中饱和脂肪酸的摄入
C.
加强病例报告制度
D.
及早发现心电图改变
E.
降低冠心病病死率
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】由集成运放A1、A2等元器件组成的反馈放大电路如图所示。设A1、A2均为理想运放。电阻R 2 阻值增加,则级间负反馈的反馈深度将________;
A.
增大,
B.
减小,
C.
不变
【简答题】本课程有多少学时?
【单选题】You are having a business lunch when your phone rings. It is an important phone call that you have been waiting for days. So the polite way to handle this situation is _______.
A.
take the call at the table and try to be quiet so you won’t disturb the other diners during the call
B.
turn your phone off completely and collect your voice mail messages afterward
C.
tell your associates at lunch that you’re expecting an important call, put your phone on vibrate mode and when the call does come, excuse yourself, leave the table and go to a place where no one can hear you. When you return to the table, thank your guest allowing you to take the call and don’t apologize or talk about the nature of the call.
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