某住户全家在半夜时出现恶心、呕吐、头晕、头痛、乏力，并伴有阵发性剧烈腹痛，腹泻多呈水

正常的磨损过程分为初期磨损阶段、正常磨损阶段和急剧磨损阶段。下列各项中， ( )具有初期磨损阶段的特点。

A．磨损速度慢，磨损情况比较稳定，磨损量基本随时间均匀增加

B．磨损速度快，各零部件表面的宏观几何形状和微观几何形状都发生明显变化

C．磨损速度快，磨损量急剧上升，机器设备的精度、技术性能和生产效率明显下降

D．磨损量与时间或加工数量成正比

阅读理解。

     Although it might have happened anywhere, my encounter with the green banana started on a steep

mountain road in the central area of Brazil. I was driving up through beautiful countryside when the radiator

(水箱) began to leak. I stopped at the next village, which consisted of a small store and a few houses. People

came over to look. "That's easy to fix," a man said. He sent a boy running for some green bananas. He patted

me on the shoulder, assuring me that everything would work out. "Green bananas," he smiled. Everyone agreed. 

     We chatted casually while all the time I was wondering what they could possibly do to my radiator with

their green bananas. I did not ask them, though, as that would show my ignorance, so I talked about the beauty

of the land that lay before our eyes. Huge rock formations, like Sugar Loaf in Rio,rose up all around us. "Do

you see that tall one right over there?" asked the man, pointing to a particularly tall, slender pinnacle (尖端) of

dark rock. "That rock marks the center of the world."

     I looked to see if he was teasing me, but his face was serious. He, in turn, inspected me carefully, as if to

make sure I grasped the significance of his statement. The occasion called for some show of recognition on

my part. "The center of the World?" I repeated, trying to show interest. He nodded, "The absolute center.

Everyone around here knows it."

     At that moment the boy returned with an armful of green bananas. The man cut one in half and pressed

the cut end against the radiator jacket. The banana melted into a glue against the hot metal, stopping the leaks

instantly. I was so astonished at this that I mush have looked rather foolish and everyone laughed. They then

refilled my radiator and gave me extra bananas to take along. An hour later, after using the green banana once

more, my radiator and I reached our destination.

     It took me a little longer to fully grasp the importance of the rock which the villagers believed marked the

center of the world. I had at first doubted their claim, as I knew for a fact that the center was located

somewhere else in New England. After all, my grandfather had come from there. But gradually I realized the

village people had a very reasonable belief and I agreed with them. We all tend to regard as the center that

special place where we are known, where we know others, where things mean much to us, and where we

ourselves have both identity and meaning: family, school, town and local region could all be our center of the

world.

     The lesson which gradually dawned on me was actually very simple. Every place has special meanings for

the people in it, and in a certain sense every place represents the center of the world. The world has numerous

 such centers, and no one student or traveler can experience all of them. But once a conscious breakthrough

to a second center is made, a life-long perspective and collection can begin.

     The cultures of the world are full of unexpected green bananas with special value and meaning. They have

been there for ages, ripening slowly, perhaps waiting patiently for people to come along to encounter them. In

fact, a green banana is waiting for all of us if we would leave our own centers of the world in order to

experience other places.

1. The author stopped at a village on his way because he wanted to ____.

A. have his car repaired

B. enjoy the beautiful scenery

C. look for some bananas to fix his radiator

D. talk to some villagers to learn about their way of life

2. What's the author's reaction to the man's remarks on the center of the earth?

A. He thought the man was serious about what he said.

B. He thought that the man was telling the truth.

C. He thought that the man was telling a story.

D. He thought the man was making fun of him.

3. What does the author come to learn from the man's remarks?

A. The rock mentioned by the man is really the center of the world for everyone.

B. There are lots of such "rocks" in the world representing the center of the world.

C. There is only one center in the world that is actually in New England.

D. As a matter of fact, the center of the world does not exist in his opinion.

4. What can we infer from the last paragraph?

A. A green banana refers to a banana that is not ripe.

B. A green banana is something that can be used to repair a leaking radiator.

C. A green banana refers to a certain culture that is unknown to an outsider.

D. A green banana is something useful that we find unexpectedly.

用Outlook Express编辑电子邮件：
收信地址：mail4test@163.com
主题：Linux安装
将TestIE.txt作为附件粘贴到信件中。
信件正文如下：
您好!
关于Linux安装的一些情况，请查阅附件，收到请回信。
此致
敬礼!

封闭捕接母线的拐弯处以及与柜（盘）连接处必须加支架。直段支架的距离不应大于（）m。

A.2

B.3

C.4

D.5

简述电子资金划拨系统的支付方式。