肺胀患者，神志恍惚，烦躁不宁，咳逆喘促，咯痰不爽，舌暗苔淡黄而腻，脉滑数。治疗应首选

麦、稻收割后，人们常常把麦秆、稻秆留下，作为柴草备用，麦秆和稻秆之所以能够燃烧，是因为（  ）

A．光能

B．二氧化碳

C．氧

D．有机物

患者，男，27岁。患右腹股沟斜疝2个月，今早剧烈运动后，肿块不能回纳，伴腹痛，呕吐，腹胀。应首先考虑的是

A．难复性疝

B．滑动性疝

C．嵌顿性疝

D．可复性疝

E．肠管壁疝

阅读理解。

     Jennie and I met in night school. After having completed the required courses, we started teaching

in the same school. Frequently we had lunch together.

     For a time we were just casual friends, but one day, when I was telling Jennie about my problem

son, we discovered we were kindred spirits. "He's a difficult little character," I explained. Jennie looked

thoughtful, "Maybe you're seeing him with your eyes." She was silent a moment and then added softly,

"It is only with the heart that one sees rightly." I stared at her, "You're quoting that! It's from The Little

Prince, SaintExupery's book for children. One of my favorites. You know it, too?" Jennie nodded, "I

love it. I've read it so often, I've practically memorized it."

     Now, when I think of Jennie, I recall that book, because Jennie-more than anyone I know-possessed

the gift of seeing with the heart.

     From that moment of a treasured book shared, our friendship grew steadily. It wasn't that I didn't have an excellent relationship with my husband and son. But my mother had died shortly after my marriage, and I had neither sisters nor daughters. I realize, now, how I needed someone to share those little, seemingly

unimportant things that add so much to life-things that must be shared to be fully appreciated.

     And it was Jennie who helped me with my fourthgrade problem child. One day I_was_at_my_wit's__

end. "What he needs is a good beating!" I exploded.

     "He's probably had plenty of those," Jennie said. "Maybe he just needs sincere praise for anything he

does right, and a hug or two each day." I followed this suggestion, and eventually, because of Jennie, I

discovered a lovable little boy.

     Looking back, I had to admit that she taught me so much, such as how to love spring. One April day I said, "I hate rain!" And I'll never forget what she said, "You can't hate spring rain! It brings the flowers!" So I learned to love spring rain, too, because it did bring flowers-violets, tulips and daffodils.

1. What does the underlined sentence "I was at my wit's end" mean?

A. I didn't know what to do next.                      

B. I decided to give up.

C. I was hurt by my son deeply.                        

D. I was very proud of my son.

2. We learn from the passage that the author ________.

A. has the gift of seeing with the heart

B. likes spring rain because it seldom rains in spring

C. had lost her mother before her marriage

D. seldom praised her child in the past

3. How does the author feel about her family?

A. No one listened to her seemingly unimportant things.

B. She didn't get along well with her husband and son.

C. She seldom spoke to her mother.

D. She felt quite alone in her family.

4. The passage is mainly about ________.

A. how to educate children properly

B. the fact that we should see nature differently

C. the influence of friendship on our life

D. how friendship begins and develops

下列关于左侧上腔静脉的错误描述是：（）.

A．位于主动脉弓外侧 

B．下行于肺动脉主干的外侧 

C．经左肺门前方进入左房与左室之间的冠状窦 

D．增强扫描有助与淋巴结鉴别 

E．右臂注射造影剂并快速动脉早期扫描可清楚显示

下列关于企业“经营杠杆”的表述，正确的有（）。

A．保持较高的销售量和维持市场占有率是经营杠杆较高的行业成功的关键

B．经营杠杆越高，销售量对营业利润的影响就越大

C．固定资本占总成本的比例越大，经营杠杆越高

D．通常情况下，高经营杠杆代表着高风险

E．在经济增长、销售上升时，低经营杠杆行业的增长速度要比高经营杠杆行业的增长速度缓慢