脊柱后凸常见病因有哪些？

能与肾上腺素在不同条件下分别发生协同作用的激素是

①胰岛素 ②胰高血糖素 ③甲状腺激素 ④抗利尿激素[ ]

A．②

B．②③

C．②④

D．③④

气象部门预测明天降水的可能性是90%，那么明天一定会下雨．______．（判断正误）

阅读理解。

                                                        Caring a lot, in a quiet way

      The situation seemed hopeless.

       From the day he started at my junior-high,Willard. P. Franklin lived in his own world,

shutting out his classmates and me,his teacher. My attempts at establishing a friendly

relationship with him were met with complete indifference (冷淡). Even a "Good Morning

Willard" received only a very low grunt (咕哝).I could see that his classmates got on no

better. Willard was completely a loner who seemed to have no desire or need to break his barrier (障碍) of silence.

      Shortly after the Thanksgiving holiday,we received word of the annual Christmas collection of money

for the less fortunate people in our school district.

       "Christmas is a season of giving,"I told my students. "There are a few students in the school who might not have a happy holiday season. By contributing to our Christmas collection,you will help buy food,

clothing and toys for these needy people. We start the collection tomorrow. "

      When I called for the contribution the next day,I discovered that almost everyone had forgotten,

except Willard P. Franklin. The boy dug deep into his pants pockets as he walked up to my desk.

Carefully,he dropped two quarters into the small container.

      "I don't need any milk for lunch,"he said very quietly. For a moment,just a moment,he smiled. Then

he

turned and walked back to his desk.

      That night,after school,I took our meager contribution to the school principal (校长). I couldn't help

sharing the incident that had taken place.

      "I may be wrong,but I believe Willard might be getting ready to become a part of the world around

him,"I told the principal.

       "Yes,I believe it sounds hopeful,"he nodded. "And I think we might do well to have him share a bit

of his world with us.I just received a list of the poor families in our school who most need help through

the Christmas collection. Here,take a look at it. "

        As I gazed down to read,I discovered Willard P. Franklin and his family were the top name on the

list.

                                                                                                                Anonym

1. From the second paragraph,we can see that the teacher  

A. established a friendly relationship with Willard

B. tried hard to pull Willard out of his own world

C. found Willard got on better with his classmates

D. believed that Willard would gradually open his heart

2. What do we learn about the collection of money at Christmas?    

A. It is intended for the poor families in their school district.

B. Everyone was unwilling to contribute to the Christmas collectior.

C. Students were encouraged to buy food,clothing and toys for needy people.

D. It is collected every year to celebrate the Thanksgiving holiday.

3. What does the underlined word "meager" in Paragraph 7 mean?

A. Great.    

B. Generous.    

C. Huge.        

D. Small.

4. Which of the following can best describe Willard?  

A. Poor but proud.          

B. Lonely but caring.

C. Indifferent and sad.      

D. Bright and hopeful.  

5. How did the teacher feel after he saw the list of the poor families in their school district?

A. Happy.        

B. Touched.      

C. Angry.        

D. Sad.

术后采用硬膜外吗啡镇痛最常见的副作用是()

A．皮肤瘙痒

B．恶心呕吐

C．嗜睡

D．f氐血压

E．呼吸抑制

每半年末存款1000元，年利率8%，每季复利计息一次，2年末存款本息和为（）万元。

A.4160.00

B.4248.99

C.4244.45

D.4462.99