维生素D治疗佝偻病的剂量应为() A.依病情不同而剂量不同 B.不同病期,剂量相同

题型:单项选择题

问题:

维生素D治疗佝偻病的剂量应为()

A.依病情不同而剂量不同

B.不同病期,剂量相同

C.先用小剂量,逐渐加大剂量

D.剂量越大越好

E.剂量越小越安全

考点:儿内科(医学高级)儿内科综合练习儿内科综合练习题库
题型:单项选择题

如图所示,为一物体做直线运动的v-t图象,初速度为v0,末速度vt,则关于物体在t时间内的平均速度正确的是

[ ]

A. v=(v0+vt)/2

B. v>(v0+vt)/2

C. v<(v0+vt)/2

D.无法判断

题型:单项选择题

对艾滋病病毒有效的消毒方式不包括以下哪种()

A.75%乙醇

B.紫外线照射

C.5%次氯酸钠溶液

D.2.5%碘酊

E.0.1%家用漂白粉

题型:单项选择题
请阅读下面短文,选择最佳答案,将其标号在答题卡上涂黑。
There are many kinds of friends. Some are always        you, but don't understand you. Some say only a few words to you, but understand you. Many people will step in your life, but only        friends leave footprints.
I shall always recall the autumn and the girl with the        . I know she will always be my best friend. I could see the yellow leaves         in the cool wind. In such a        , I liked walking alone in the leaves,         to the sound of them. Autumn is a harvest season. However,         is uninteresting. The free days always get me      . But one day, the sound of a violin       into my ears like a stream flowing in the mountains. A young girl, standing in the wind, was        in playing her violin.  I had        seen her before. The music was so nice that I listened quietly. Lost in the music, I didn't know that I had been     _  there for so long but my existence(存在) did not seem to disturb(打扰)her.
Every day she played the violin in the corner of the building        I went downstairs to watch her performance. The autumn seemed no longer lonely and life became       . Though we didn't know each other, I thought we were already good       .
One day, when I was listening carefully, the sound suddenly       . To my surprise, the girl came over to me. “You must like violin,” she said. “Yes. And you play very well. Why did you stop?” I asked. Suddenly, a        expression appeared on her face and I could feel something unusual. “I came here to see my grandmother, but now I must leave, I once played very badly. It was your listening every day that       me,” she said. “In fact, it was your playing        gave me a meaningful autumn,” I answered, “Let's be friends.” The girl smiled, and so did I.
I never heard her play again in my life. But I will always remember the fine figure(身影) of the girl. She is like a       -so short, so bright, like a shooting star giving off much light that makes the autumn beautiful.
小题1:
A.withB.forC.againstD.to
小题2:
A.goodB.trueC.reliableD.stubborn
小题3:
A.soundB.songC.partnerD.violin
小题4:
A.shakingB.hangingC.risingD.floating
小题5:
A.seasonB.situationC.dayD.weather
小题6:
A.watchingB.listeningC.seeingD.hearing
小题7:
A.journeyB.workC.lifeD.view
小题8:
A.boredB.determinedC.excited D.concerned
小题9:
A.flowedB.grewC.enteredD.ran
小题10:
A.lostB.activeC.busyD.interested
小题11:
A.onceB.neverC.frequentlyD.usually
小题12:
A.waitingB.stoppingC.standingD.hearing
小题13:
A.becauseB.butC.whenD.before
小题14:
A.interesting B.movingC.boringD.tiring
小题15:
A.partnerB.listenersC.playersD.friends
小题16:
A.stoppedB.beganC.goneD.changed
小题17:
A.happyB.sadC.strangeD.calm
小题18:
A.surprisedB.excitedC.encouragedD.interested
小题19:
A.thatB.whichC.itD.who
小题20:
A.songB.dreamC.windD.sister
题型:单项选择题

根据担保法律制度的规定,下列各项中,可以为合同债务人的债务履行作保证人的是 ( )。

A.学校

B.医院

C.企业

D.残疾人联合会

题型:单项选择题

当飞机内话音频板ACP上的PTT开关扳至I/C位时,表示().

A.将电台输出信号连接到所选的内话系统中

B.将进入电台接收状态

C.将话筒输入信号输入到所选电台去发射

D.将话筒输入信号直接连接到飞行内话系统

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