股骨颈骨折愈合过程中不出现外骨痂的原因()。 A.股骨颈无骨内膜 B.股骨颈无骨外膜

题型:单项选择题 A1型题

问题:

股骨颈骨折愈合过程中不出现外骨痂的原因()。

A.股骨颈无骨内膜

B.股骨颈无骨外膜

C.股骨颈骨折后血肿太多

D.股骨颈血液供应差

E.复位因难,反复整复

考点:中西医结合主治医师中西医结合骨伤科中西医结合骨伤科题库
题型:单项选择题 A1型题

—  Would you allow me ______ here?

— Sorry. We don't permit ______ in the lab.[ ]

A. smoking; smoking  

B. to smoke; to smoke  

C. smoking; to smoke  

D. to smoke; smoking

题型:单项选择题 A1型题

驾驶证考试中的路考,在即将结束时要进行目标停车,考官会在离停车点不远的地方发出指令,要求将车停在指定的标志杆附近,终点附近的道路是平直的,依次有编号为A、B、C、D、E的5根标志杆,相邻杆之间的距离△L=12.0m.一次路考中,学员甲驾驶汽车,学员乙坐在后排观察并记录时间,学员乙与车前端面的距离为s=2.0m.假设在考官发出目标停车的指令前,汽车是匀速运动的,当学员乙经过O点考官发出指令:“在D标志杆目标停车”,发出指令后,学员乙立即开始计时,学员甲需要经历△t=0.5s的反应时间才开始刹车,幵始刹车后汽车做匀减速直线运动,直到停止.学员乙记录下自己经过B、C杆时的时刻tB=4.5s、tC=6.50s.己知LOA=44m.求:

(1)刹车前汽车做匀速运动的速度大小W及汽车开始刹车后做匀减速直线运动的加速度大小a;

(2)汽车停止运动时车头前端面离D的距离.

题型:单项选择题 A1型题

E

    Antarctica, with its seemingly endless icy beauty, is one place where one look is worth a thousand words. My own dream to see it came true last January when I joined the sixth exploration crew(考查队) of the China National Marine Bureau. We spent 10 days connecting flights to reach our goal, but finally arrived at the Great Wall Station on Antarctica on the eve of Chinese New Year.

There are only two seasons in Antarctica: winter and summer. You get polar nights in winter and polar days in summer. Day is longer than night in summer, and the temperature often reaches below zero. Luckily, there are no snowstorms in summer, which makes it the best season to travel. What I imagined before starting for Antarctica was a world of ice, storms, endless cold and loneliness. When I stopped on Antarctica for the first time, however, I saw rich, energetic and beautiful scenery that was beyond anything I had imagined.

We only spent 11 days at the South Pole, but every minute was spent taking pictures and losing our heart to the wonderland. Beauty enveloped us as we watched the world around us. The mountains, oceans, ice, snow, sky, earth and people all seemed to have their own stories.

Rocks from Antarctica are considered valuable. Unfortunately, I didn’t bring one back. However, my heavy bags full of films are certainly worth that. It is in these pictures that the true Antarctica comes alive.

72. What is the best title for this passage?  

A. Antarctica, my dream world.              B. Beautiful Antarctica.

C. What I’ve got in Antarctica.         D. My visit to Antarctica.

73. Why is summer the best season to go to Antarctica? 

A.    There are no snowstorms in summer.  

B. Night is longer than day in summer. 

C. The temperature often reaches below zero in summer.

D. In this season, Antarctica is world of ice, storms and loneliness.

74. What made the writer unexpected(意外) is that he saw_______.

A. the only two seasons there: winter and summer

B. the world of ice, storms ,endless cold and loneliness

C. the rich, energetic and beautiful scenery    

D. the Great Wall Station and many rocks there

75. The writer joined the sixth exploration team to _______.

A. make some studies of the weather and the animals 

B. study the relationship between the weather and the animals 

C. collect some information for a scientific study center

D. capture(捕获) the rich, energetic and beautiful scenery 

题型:单项选择题 A1型题

RNA指导的DNA合成称()

A.复制

B.转录

C.逆转录

D.翻译

E.整合

题型:单项选择题 A1型题

下列情形符合考核周期内考核等级为B级的有()

A.综合得分在600分以下的

B.出租汽车驾驶员有10%以上服务质量信誉

C.发生一次死亡3人以上交通事故且负同等或主要责任的

D.发生一次重特大恶性服务质量事件的

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