机械零件磨损的主要形式有（）。A．磨合磨损 B．硬粒磨损 C．摩擦表面咬焊 D．表面

作文（40分）

书信是我们交流思想、表达情感最常见的方式。《与朱元思书》描绘了一幅充满生机的大自然画卷；《就英法联军火烧圆明园致巴特勒上尉的一封信》愤怒地谴责了侵略者的罪行；《傅雷家书》传递着动人的舐犊之情；《致女儿的一封信》则用充满诗意的故事阐释了生命的真谛……请你选择一个渴望交流的对象，以写信的方式追忆往事、传递情感、关注现实、畅想未来，展开心灵对话吧！

请以“写给__________”为题，写一篇文章。

要求：（1）请选择下 * * 个词语中的一个，填入标题横线处，使之完整；

自己 班主任 温 * *  蚂蚁 未来

（2）字数不少于600；

（3）文中不得出现真实的人名、地名、校名。

小儿体格发育的两个高峰期是（ ）。

A．婴儿期、学龄期

B．学龄前期、青春期

C．幼儿期、学龄期

D．婴儿期、青春期

E．新生儿期、学龄期

阅读理解

     In my profession as an educator and health care provider, I have worked with numerous children

infected with the virus that causes AIDS. The relationships that I have had with these special kids have

been gifts in my life. They have taught me so many things, but I have especially learned that great courage

can be found in the smallest of packages. Let me tell you about Tyler.

     Tyler was born infected with HIV:his mother was also infected. From the very beginning of his life,

he was dependent on medications to enable him to survive. When he was five, he had a tube surgically

inserted in a vein in his chest. This tube was connected to a pump, which he carried in a small backpack

on his back. Medications were hooked up to this pump and were continuously supplied through this

tube to his bloodstream. At times, he also needed supplemented oxygen to support his breathing.

     Tyler wasn't willing to give up one single moment of his childhood to this deadly disease. It was not

unusual to find him playing and racing around his backyard, wearing his medicineladen backpack and

dragging his tank of oxygen behind him in his little wagon. All of us who knew Tyler marveled at his

pure joy in being alive and the energy it gave him. Tyler's mom often teased him by telling him that he

moved so fast that she needed to dress him in red. That way, when she peered through the window to

check on him playing in the yard, she could quickly spot him.

     This dreaded disease eventually wore down even the likes of a little dynamo like Tyler. He grew

quite ill and, unfortunately, so did his HIV-infected mother. When it became apparent that he wasn't

going to survive, Tyler's mom talked to him about death. She comforted him by telling Tyler that she

was dying too, and that she would be with him soon in heaven.

     A few days before his death, Tyler beckoned me over to his hospital bed and whispered, "I might

die soon. I'm not scared. When I die, please dress me in red. Mom promised she's coming to heaven,

too. I'll be playing when she gets there, and I want to make sure she can find me."

1. What is the boy Tyler's attitude towards death?

A. Pessimistic.  

B. Optimistic.

C. Sorrowful.  

D. Fearful.

2. Tyler requested the writer to dress him in red when he died simply because __________.

A. red is a lucky color

B. red might help to cure him

C. his mom could spot him easily

D. he could find more mates by wearing red

3. Which of the following might serve as a possible title for this passage?

A. My unusual profession  

B. A caring mother

C. Mother and son  

D. Dying in red

4. The underlined word "dynamo" in the fourth paragraph here means __________.

A. a promising and helpful youth

B. an extremely energetic person

C. a rare and beautiful flower

D. a magic and understanding superstar

采用工程量清单计价，规费计取的基数是（ ）。

A．分部分项工程费

B．人工费

C．人工费＋机械费

D．分部分项工程费＋措施项目费＋其他项目费

艾滋病毒特异性侵犯下列哪种细胞，从而导致机体免疫功能缺陷（）

A.CD₄

B.CD₈

C.CD₃

D.NK

E.LC