在住院行手术治疗前,应常规进行下列哪项检查A.淋巴结活检 B.头颅CT C.胃肠道钡

题型:单项选择题

问题:

在住院行手术治疗前,应常规进行下列哪项检查

A.淋巴结活检

B.头颅CT

C.胃肠道钡餐检查

D.胸部X线摄片

E.骨髓穿刺

考点:临床执业医师外科学泌尿、男生殖系统结核
题型:单项选择题

       1929—2933年世界经济危机的打击下,一些国家建立法西斯 * * ,有的还成为世界大战的策源地,德国就是一个典型,与德国类似的还有 [ ]

A、意大利

B、日本

C、西班牙

D、葡萄牙

题型:单项选择题

调幅波的频率随着低频信号的变化而变化。

题型:单项选择题
完形填空:(共20小题;每小题1.5分,满分30分)
In history,a real cowboy was a simple farm worker on horseback.He spent a long time a day outdoors working with cows.The work was dirty,tiring and not very well paid.
People in the western states had to __36__ cattle at low cost and send them by railway to the eastern __37__.But someone had to __38__ the cattle and get them to the nearest railroad.This was the job of a cowboy.Sometimes the __39__ was more than a thousand kilometers away and it could take as __40__ as six months to move the cattle.The __41__ was long but the cattle were driven __42__ as not to lose __43__.Then they could be sold at a good price.
Most cowboys were young, __44__ men.A good horse _45__ their job of moving cattle much easier.A good cowboy __46__ cows and knew how to control them.At night,he __47__ to the cows to keep them calm.
In the late 1800s,America was changing from a nation of farm to one of __48__ and cities.The cowboy seemed __49__ compared with other Americans doing ordinary jobs.
Today,the __50__ of cowboys has __51__ greatly.One change is the use of trucks.The job is not so hard __52__ it used to be.And cowboys are better __53__ now.They are _54__ to be married.Some of them are farmers or teachers or truck drivers.Some work for big companies.
__55__ at night and on weekends,they become cowboys.These part-time cowboys increase the total production of meat,keeping the beef price low.
小题1:
A.getB.buyC.sellD.raise
小题2:
A.marketsB.countriesC.citiesD.stories
小题3:
A.deal withB.find outC.look afterD.pay off
小题4:
A.roadB.railroadC.stateD.farm
小题5:
A.goodB.muchC.longD.far
小题6:
A.journeyB.tripC.tourD.travel
小题7:
A.hurriedlyB.smoothlyC.slowlyD.carefully
小题8:
A.mindB.directionC.headD.weight
小题9:
A.unmarriedB.proudC.strongD.educated
小题10:
A.hadB.madeC.foundD.helped
小题11:
A.recognizedB.understoodC.ownedD.kept
小题12:
A.whisperedB.shoutedC.criedD.sang
小题13:
A.townsB.factoriesC.companiesD.villages
小题14:
A.freeB.braveC.easyD.pleased
小题15:
A.mannerB.jobC.lifeD.mind
小题16:
A.changedB.developedC.improvedD.realized
小题17:
A.thatB.asC.whichD.what
小题18:
A.knownB.paidC.treatedD.dressed
小题19:
A.afraidB.eagerC.worriedD.likely
小题20:
A.BecauseB.AndC.WhenD.But
题型:单项选择题

下列反射活动属于条件反射的是(  )

A.吮吸反射

B.缩手反射

C.膝跳反射

D.望梅止渴

题型:单项选择题

斯金纳总结出操作性反射的强化原则有______

A.正性强化

B.负性强化

C.惩罚

D.塑造

E.强化消退

更多题库