拟除虫菊酯类农药具有熏蒸作用。

关于髋关节脱位的叙述不确切的是（）。

A.后脱位多因直接暴力引起

B.前脱位以杠杆力作用为主

C.中心脱位多由传达暴力所致

D.可压迫闭孔神经

E.强大暴力同时可出现股骨干骨折

阅读理解

     Around twenty years ago I was going through hard times. I could not find a satisfying job. To my

shame, I had to drive a school bus to make ends meet and lived in a friend's house.

     One afternoon, while driving through a quiet suburban (郊外的) neighborhood I was so sad that I kept asking myself "Why has my life become so hard?" "What's wrong with the world?" Then I pulled over the

bus to drop off (让...下车) a little girl and as she passed she handed me a pretty earring, saying she found

it on the floor of the bus and I should keep it in case(以防)the owner came to look for it.

     In the evening, the owner did come to look for her earring. When I handed it to her, she got very

excited and continued saying "Thanks, you're a real gentleman." I told her that she should thank the little girl who had found it. She said, "Yes, and you are a good driver, too. What a lovely world it is!" Then she left with satisfaction. I was touched by her last words. I had thought something was wrong with the world just because of my poor condition. In fact, nothing was wrong with the world. I should change my attitude

towards life. I should be positive about life.

     At first it was hard, and then it got easier. Every day I could find things to make me happy. Then one

night there was a phone call for me at my friend's house from a lady who was a manager in a large hospital. She said she had read my application form and asked me if I would like to work in the hospital. I said yes and got the job. Looking back at the experience I know the most important is to have a positive attitude

towards life.

1. We know from the second paragraph that ________.  

A. the author cried while driving that afternoon      

B. a girl picked up an earring before getting off

C. there was only one passenger on the bus        

D. the girl gave the author an earning as a gift

2. The author decided to have a change in life because ________.  

A. what the earring owner said moved him        

B. he didn't want to be a driver any more

C. his friends helped him become positive         

D. he was offered a better job in a hospital

3. When the author got a call from the manager of the hospital, he felt ________.

A. annoyed(生气的)      

B. disappointed      

C. shocked    

D. delighted(高兴的)

4. What does the author want to show in this passage?

A. Lost things should be returned to the owner.    

B. Life is usually hard for the young at the beginning.

C. One should hold a positive attitude towards life.    

D. It is not easy to find a good job nowadays.

游标卡尺，主尺上的刻度每小格为（）

A、0.01mm

B、0.5mm

C、0.1mm

D、1mm

民间插花

患者发现左甲状腺后下方有一肿物，椭圆形，有典型甲状旁腺亢进表现，但无尿毒症，它最可能是（）。

A.甲状腺腺瘤

B.甲状旁腺瘤

C.甲状腺囊肿

D.结节性甲状腺肿

E.甲状旁腺增生