心悸、失眠、汗出者，当选用（） A.朱砂 B.磁石 C.琥珀 D.酸枣仁 E.柏子仁

知识作为人类认识的结果，是一个外延很大的概念。它一般包括四个层次或方面，即常识、经验概括、科学知识和哲学知识。所谓常识，主要包括格言、谚语等一般人普遍熟知的知识。它往往不是对事物的本质及其规律的认识，而科学知识是一种理论体系，具有逻辑性、系统性。因此()。

A．科学知识是绝对真理，不容置疑
B．与科学知识相比，常识有很多经不起推敲的地方，即其包含着许多错误
C．常识都不可信
D．科学知识中包含着常识

培训与开发需求分析中的()，旨在明确每一项工作职责的任务要求、能力要求和人员的素质要求。

A.组织分析 

B.工作任务分析 

C.人员综合素质分析 

D.人员分析

大动脉瘤搏动减弱或消失的常见原因是()

A．合并心功能不全

B．合并瓣膜病

C．附壁血栓形成

D．动脉瘤周围粘连

E．动脉瘤壁钙化

结膜充血的血管收缩剂反应表现为（）。

A.血管清晰度减弱

B.血管清晰度增强

C.充血很明显、变白

D.充血可消退、变白

E.充血稍减、但不变白

Exercise, everyone advises! But immediately, when you try, you run into trouble. (46)There is so much contradictory, sometimes incorrect advice about exercising that you become confused. Test yourself on the following true false quiz. It will tell you what you need to know.
1. The best way to reduce the mid-section is to do abdominal exercise.
False. Many people believe that when specific muscles are exercised, the fatty tissues in the immediate area are "burned up." (47)The truth-is that exercise burns fat from all over the body and not from one specific area, regardless of the type of exercise. Of course, if you reduce the fat throughout your body, you will certainly see results around your waistline too!
2. To maintain an adequate level of physical fitness, you need to exercise only twice a week.
False. Studies conducted by NASA, the National Aeronautics and Space Administration, show that unexercised muscles lose their strength very quickly. After 48 to 72 hours, you must use the muscles again to reestablish the good physical effect. And what does that mean to you (48) NASA scientists concluded that while daily exercise is most beneficial, three alternating days each week will maintain an adequate level of physical fitness.
3. To lose weight you should always "work up a good sweat" when exercising.
False. Sweating only lowers body temperature to prevent overheating; it does not help you reduce weight. You may weigh less immediately after a workout, but this is due to water loss. Once you replace the liquid, you replace the weight.
4. If your breathing doesn’t return to normal within minutes after you finish exercising, you’ve exercised too much.
True. Five minutes or so after exercising, your breathing should be normal, your heart shouldn’t be pounding, and you shouldn’t be exhausted. (49) Beneficial exercise is not overly difficult, unpleasant, and exhausting; it is moderate, enjoyable, and refreshing.
5. Walking is one of the best exercises.
True. Walking helps circulation of blood throughout the body, and thus has a direct effect or your overall feeling of health.
6. The minimum amount of time you should spend exercising in a day is 20 minutes.
True. There are more than 400 muscles that attach to your skeleton. (50) A good exercise routine should contract and stretch all these muscles, and this simply cannot be done with four or five exercises in five to ten minutes. From experience, I’ve found that about 20 minutes is the minimum amount of time needed for an adequate workout.