肱骨外科颈骨折的部位是A．肱骨大、小结节交界处B．肱骨大、小结_爱下问搜题

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问题单项选择题

肱骨外科颈骨折的部位是

A．肱骨大、小结节交界处
B．肱骨大、小结节移行为肱骨干的交界处
C．肱骨头与肱骨干的交界处
D．骸骨头周围的环形沟
E．肱骨上端干骺端处

答案

参考答案：B

解析：[解题思路] 肱骨外科颈为肱骨大、小结节移行为肱骨干的交界部位，是松质骨和密质骨的交接处，易发生骨折。其内侧有臂丛神经和腋血管，骨折时可合并神经血管损伤。
[命题规律] 考察“肱骨外科颈的解剖”。必须掌握。

单项选择题 A3/A4型题

十个月男婴，因腹泻3天伴呕吐入院。大便每天6～9次，蛋花汤样，略带腥臭，1天来口干少尿。患儿以牛奶喂养为主，家长卫生习惯差，既往无腹泻史。体格检查：T38℃，精神差，哭时泪少，前囟眼窝凹陷，唇干，心、肺正常。腹软，肠鸣音活跃。大便常规：色黄，有黏液，白细胞数0～5/HP。

下列因素与本例发生腹泻有关，除了()

A．人工喂养，卫生习惯差

B．天气过热，使胃酸和消化酶分泌减少

C．婴幼儿胃肠道功能较薄弱

D．乳糖酶缺乏，不能耐受乳类食品

E．婴儿血中免疫球蛋白及胃肠SIgA较成人少

完形填空

I used to believe in the American Dream, which meant a job, a mortgage, credit cards, success. I wanted it and worked toward it like everyone else, all of us   51  chasing the same thing.
One year, through a series of unhappy events, it all fell   52 . I found myself homeless and alone. I had my truck and $56. I   53  the countryside for some place I could rent for the   54  possible amount. I came upon a shabby house four miles up a winding mountain road over the Potomac River in West Virginia. It was   55 , full of broken glass and rubbish. I found the owner, rented it, and   56  a corner to camp in.
The locals knew nothing about me, but slowly, they started teaching me the   57  of being a neighbor. They dropped off blankets, candles, and tools, and began sticking around to chat. They started to teach me a belief in a   58  American Dream—not the one of individual achievement but of neighborliness.
What I had believed in, all those things I thought were   59  for a civilized life, were nonexistent in this place.   60  on the mountain, my most valuable possessions were my   61  with my neighbors.
Four years later, I moved back into   62 . I saw many people were having a really hard time,
63  their jobs and homes. I managed to rent a big enough house to   64  a handful of people. There are four of us now in the house, but over time I’ve had nine people come in and move on to other places. We’d all be in shelters if we hadn’t banded together.
The American Dream I believe in now is a shared one. It’s not so much about what I can get for myself; it’s about   65  we can all get bytogether.

A．cooperation

B．relationships

C．satisfaction

D．appointments