头面先肿，继而波及全身，小便短少，发热恶风者，多因 A．心阳虚衰 B．湿邪困脾 C．

对于任意实数x，〈x＞表示不小于x的最小整数，如〈1.2＞=2，〈-0.2＞=0．定义在R上的函数f（x）=〈x＞+〈2x＞，若集合A={y|y=f（x），-1≤x≤0}，则集合A中所有元素的和为______．

A boy walked along Carver Street, singing a sad song. He walked with his head down. Once he looked up and noticed the sign across the empty street, painted on the side of an old house. On the sign a big woman with yellow hair and a five-mile smile held out a big bottle. “Coca-Cola. Drink Coca-Cola,” the sign said.

“Boy!” the silence was cut by a sudden cry. He turned around quickly to see who had called.

An old woman was standing at her door.

“You boy! Come here this minute!”

Slowly the boy ___1___ onto the cold flat stones leading to the old woman’s house. When he arrived at her house, she ___2___ out her hand and wrapped(缠住) her ___3___ old fingers around his arm.

“Help me inside, boy”, she said, “Help me ___4___ to my bed. What’s your name?”

“Joseph,” he said.

The old woman on the bed tried to ___5___ up, raising herself on her elbow(肘). Water ___6___ from her eyes and mouth. The sight of her made Joseph feel ___7___.

“I am dying, Joseph. You can see that, can’t you? I want you to write a ___8___ for me. There’s paper and pencil on the table there.”

Joseph looked down at the ___9___, and then looked out the window. He saw the sign again: “Coca-Cola. Drink Coca-cola.”

“I want my silver pin to ___10___ to my daughter.”

Joseph bent his small body over the table and ___11___ the pencil slowly across the paper.

“There’s my Bible(圣经),” the old woman said. “That’s for my daughter, too. I want a ___12__ Christian burial(基督葬礼) with lots of singing. Write that down, too. That’s the last ___13__ of a poor old woman.”

The boy labored over the paper. Again he looked out the window.

“Here. Bring it here so I can ___14___ it.”

Joseph found the Bible, and ___15___the paper inside, laid it next to the bed.

“___16___ me now, boy,” she sighed. “I’m tired.”

He ran out of the house.

A cold wind blew through the ___17___ window, but the old woman on the bed ___18___ nothing. She was dead. The paper in the Bible moved back and forth in the wind. ___19___ on the paper were some childish letters. They ___20___ the words “Coca-Cola. Drink Coca-cola.”

1. A. rushed    B. struggled    C. hurried       D. stepped

2. A. reached  B. let      C. pushed       D. pointed

3. A. firm       B. smooth       C. dry     D. fresh

4. A. back       B. over    C. away   D. ahead

5. A. sit   B. get      C. stand   D. wake

6. A. rolled     B. burnt  C. burst   D. ran

7. A. ill   B. sick    C. unpleasant  D. funny

8. A. letter      B. note    C. will    D. message

9. A. table      B. pen     C. paper  D. woman

10. A. send     B. go      C. belong       D. come

11. A. moved  B. drew   C. used    D. pulled

12. A. great    B. merry C. splendid     D. real

13. A. hope     B. chance       C. opinion      D. wish

14. A. sign      B. read    C. remember   D. copy

15. A. setting  B. hiding C. placing       D. laying

16. A. Hold    B. Leave  C. Excuse       D. Pardon

17. A. large    B. open   C. small  D. pretty

18. A. did       B. saw     C. felt     D. knew

19. A. Described    B. Printed       C. Recorded    D. Written

20. A. formed B. spelled       C. organized   D. repeated

已知△ABC与△DEF相似且面积比为4:25，则△ABC与△DEF的相似比为______．

下列属于承兑业务主要风险点的是（）

A.出票人不具备到期解付能力

B.授信条件未落实即承兑

C.保证金来源不合规

D.没有真实贸易背景

鱼类的呼吸中枢位于（），嗅觉和运动调节中枢位于（）。