有关可乐定的描述,哪项是正确的() A.β受体激动药 B.抑制生长激素的释放 C.可

题型:单项选择题

问题:

有关可乐定的描述,哪项是正确的()

A.β受体激动药

B.抑制生长激素的释放

C.可椎管内给药,用于术后镇痛

D.其镇痛机制与阿片类似

E.不易透过血-脑脊液屏障

考点:广东住院医师麻醉学麻醉学(综合练习)麻醉学(综合练习)题库
题型:单项选择题

一对平行金属板水平放置,两板相距为d,在下板的下侧空间有垂直纸面水平向里的匀强磁场,磁感应强度为B,两板中心开有上下对应的两个小孔,当两板间加上电压V以后,带电量为+q.质量为m的两个相同质点,分别从两板间左端中点a和上板中心小孔b处同时飞人,由a点飞入的质点初速度为2v0,且方向平行金属板;由b飞人的质点初速度为v0,且方向垂直金褐板,结果两质点同时穿过下板的小孔C后,又分别在磁场中偏转,最后均打在下极板的下表面L(不计重力的影响,也不考虑两质点问的相互影响).求:

(1)两质点在金属板间运动的时间t1

(2)两质点在磁场中运动的时间ta和tb

(3)两质点在下板的下表耐上撞击点间的距离△s.

题型:单项选择题

硫唑嘌呤一般的起始剂量和加量的原则是()

 

A.25mg/d开始,逐渐增至1~2mg·kg-1·d-1

B.25mg/d开始,逐渐增至2~4mg·kg-1·d-1

C.50mg/d开始,逐渐增至1~2mg·kg-1·d-1

D.50mg/d开始,逐渐增至2~4mg·kg-1·d-1

E.100mg/d开始,逐渐增至2~4mg·kg-1·d-1

题型:单项选择题

(一)背景资料:某内河航道工程包括20km航道疏浚和A、B两处礁石清除。施工单位在与业主签订合同后,按照承诺组织了-艘自航耙吸式挖泥船、一艘钻孔爆破船、一艘抓斗式挖泥船及其它辅助船机设备进场。在办理相关手续的过程中发现该河段分属两个海事局管辖,施工单位在规定的时间内向海事局提出了水上水下施工作业安全审核申请,海事局核发了有效期为三个月的《水上水下施工作业许可证》,并发布了航行通告,工程于2006年1月15日按期开工。在春节前的1月28日该项目监理组织了节前安全大检查,发现了如下一些问题:(1)没有制订《防护性安全技术措施》,要求限期制订提交;(2)在作业船舶有船员就餐时饮酒,要求严禁在船期闯饮酒;(3)生活区走道内,船员穿拖鞋行走,要求整改;(4)炸药库未建立爆破用品进出台帐,要求立即建立,认真填写;(5)炸礁作业的水上安全标志、灯光不够,要求增加安全标志和灯光标志船2艘。监理对上述存在的问题及隐患下达了监理通知,要求逐条落实整改。施工单位通过总结整改,完善了安全措施,同时又向监理提出了增加安全措施费用的要求。

施工单位提出增加安全措施费的要求是否合理?为什么?

题型:单项选择题

Each year , millions of people go abroad to work ,study ,or travel .It’s a great way to find out what life is like in another part of the world !You’re probably hoping to make new friends and learn about the culture in your host country everything from attitudes and beliefs to social customs and popular foods. But constantly having to deal with new situations can be frustrating (挫折), even stressful.

Homesickness, stress, fear , and confusion are all symptoms of “culture shock”. At first ,you may feel like getting on the plane and heading home .It’s OK to have those feelings, but the following are some tips to help you handle the challenges that you will face .

Don’t expect to be perfect , You may feel frustrated that you have culture shock ,especially since you probably spent so much time preparing for your trip .No matter how much information you read ,or how well you speak the host language ,it is natural to feel overwhelmed sometimes. If you give yourself some time, things will gradually get easier.

Have an open mind .While it’s certainly OK to feel frustration or confusion in your new surroundings ,try not to form an opinion about the new culture too soon .Don’t think of the host as better or worse , just different –you’ll be more willing to try new things .

Participate .This is obvious ,but everybody needs to be reminded. Just watching life go on around you isn’t good enough .You really need to try things for yourself . Don’t worry about making a mistake; people in your host country will generally be very understanding and willing to help if you have question .Your study abroad experience is a unique and special time in your life, one that you’ll never forget. If you follow our suggestions ,you’ll be able to handle it well ,and have a wonderful time. Good luck!

小题1:What is culture shock ?

A.Something you feel surprised at .

B.The problems you have when you go to another country

C.The frightening feelings you have

D.Something different from your own culture小题2:What should you do when you feel depressed ?

A.Go back to your own homeland

B.Talk to someone about your problem

C.Give yourself some time to get used to it

D.Stop thinking of it小题3:Which of the following statements is WRONG ?

A.It is natural to feel overwhelmed sometimes

B.Not everything is perfect

C.Try to form the opinion about the new culture as soon as possible

D.Tell others about your problems小题4:What is the main idea of this article ?

A.How to overcome culture shock

B.Why do people have culture shock

C.Who might have culture shock

D.When will you have culture shock

题型:单项选择题

净运营收益的计算公式为( )。

A.净运营收益=潜在毛租金收入-空置和收租损失+其他收入
B.净运营收益=有效毛收入-运营费用
C.净运营收益=有效毛收入-运营费用-准备金
D.净运营收益=潜在毛租金收入-运营费用

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