小儿末梢血中性粒细胞和淋巴细胞的比例相等的时间分别是( ) A.1~3天和1~3岁

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问题:

小儿末梢血中性粒细胞和淋巴细胞的比例相等的时间分别是( )

A.1~3天和1~3岁
B.4~6天和4~6岁
C.7~9天和7~9岁
D.10~12天和10~12岁
E.13~15天和13~15岁

考点:临床执业助理医师儿科学
题型:单项选择题
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米长的绳子平均分成3段,每段长______米,每段是全长的______.
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男,65岁,间断咳嗽、咳痰15年,活动后心慌、气短3年。近5天来发热、咳嗽、咳黄痰、憋气加重,伴尿少、双下肢浮肿,以下治疗措施最重要的是()

A.应用有效抗生素控制肺部感染

B.祛痰、止咳、平喘

C.应用利尿剂消除下肢浮肿

D.静点酚妥拉明以减轻心脏负荷

E.应用呼吸兴奋剂改善呼吸功能

题型:单项选择题

How to be Prepared

Electricity, water, gas and telephone may not be working after an earthquake. The police and fire department are likely to be tied up. You should be prepared to take care of yourself for at least three days, preferably for a week.

This list can also be applied to other disasters, such as floods or wildfires.

1. food and water (a gallon a day per person)

2. a first aid kit

3. a fire extinguisher suitable for all types of fires

4. flashlights, a portable radio extra batteries

5. blankets, clothes, shoes and money (ATMs may not work)

6. baby and pet food

It’s also a good idea to decide beforehand how and where your family will reunite if separated during a quake and to conduct in-home practice drills.

During an Earthquake

If you are indoors, stay there. Get under and hold onto a desk or table, or stand against an interior wall. Stay away from exterior walls, glass, heavy furniture, and stay away from windows and outside walls and do not use the elevator.

If you are outside, get into the open, stay into the open, stay away from buildings, power lines or anything else that could fall on you.

If you are driving, move the car out of traffic and stop, avoid parking under or on bridges or overpasses, Try to get clear of trees, light posts, signs and power lines.

If you are in a crowded public place, avoid panicking and do not rush for the exit. Stay low and cover your head and neck with your hands and arms.

After an Earthquake

If the phone is working, only use it in case of emergency. Likewise, avoid driving if possible to keep the streets clear for emergency vehicles.

Be aware that items may fall out of cupboards or closets when the door is opened, and also that chimneys can be weakened and fall with touch. Check for cracks and damage to the roof and foundation of your home.

Listen to the radio for important information and instructions. Remember that aftershocks, sometimes large enough to cause damage in their own right, generally follow large quakes.

If you leave home, leave a message telling friends and family your location.

小题1:Which of the following items is unnecessary to prepare before an earthquake?

A.Batteries

B.Cash

C.Medicine

D.Creditcard小题2:When an earthquake comes,you should ______. 

A.hideyourselfinthekitchen

B.rushfortheexitimmediately

C.stayawayfromheavyobjects

D.callthepolicerightaway小题3:When an earthquake is over,you should______. 

A.driveacartotakeyourfamilytothesafeplace

B.checkthesecurityofyourhome

C.callyourrelativestotellthemyouaresafe

D.clearupthemessassoonaspossible.小题4:Which of the following sentences is true according to the passage? 

A.You’dbettermakeitclearhowandwhereyourfamilywillreuniteifseparatedduringaquakeafterthequakehappens.

B.Ifyouareindoors,getintotheopen.

C.Ifyouareinacrowdedpublicplace,avoidpanickinganddorushfortheexit.

D.Ifthephonestillworks,onlyuseitwhennecessary.小题5:What does the underlined word “aftershock ” mean? 

A.Alessseriousquakefollowingalargeearthquakeinthesamearea.

B.Afurtherreactionfollowingtheshockofadeeplydisturbingthing.

C.Amessonehastodealwithafteraterriblething.

D.Aninstructionthegovernmentgivestosolveproblems.

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某多层钢筋混凝土框架结构办公楼,抗震等级二级,首层层高4.2m,其余各层层高为3.9m,地面到基础顶面1.1m,柱网7.5m×7.5m,柱架柱截面尺寸600mm×600mm,框架梁截面尺寸为300mm×600mm(y方向)、300mm×600mm(x方向),如图所示。首层中柱,柱底截面在x方向地震作用下的荷载效应与地震作用效应组合的内力设计值(已考虑二阶效应)为:M=800kN·m,N=2200kN,V=369kN,受力纵筋采用HRB400级,箍筋采用HRB335级。柱采用C30混凝土,梁采用C25混凝土。取as=as'=40mm。

假定已考虑侧移影响的该中柱上、下端截面沿x方向的组合弯矩、轴力设计值分别为:M1=-600kN·m,N1=2000kN,M2=750kN,N2=2200kN,试问,该中柱的控制截面的弯矩设值(kN·m),与下列何项数值最为接近,构件的计算长度近似数为lc=5.3m。()

A.750

B.770

C.800

D.850

题型:单项选择题

西方列强曾经强迫中国签订不平等条约,取得了许多权益,其中对中国民族工业发展危害最大的是()

A、开埠通商

B、协定关税

C、割占土地

D、赔偿银两

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