在病理情况下出现在血液中的血红蛋白是（）。 A.HbO2 B.HbCO C.SHb

My name is Amanda LaMunyon. I have Asperger’s syndrome, a form of autism (自闭症). I don’t see myself as a person with a disability. I share who I am when I paint, sing and write.

I started writing poetry because I wanted to tell people what it was like to have Asperger’s syndrome. I don’t know how my life would be different without Asperger’s, but I know I look at the world differently than most people. I’m also learning that you don’t have to be like everybody else. You just have to be confident in who you are.

I discovered I could paint when I was 7. My math teacher Mrs. Brock loved one of my paintings so much that she hung it on the wall in her bedroom. I was so encouraged by her and since then my life has changed greatly.

Soon after, people asked me to show my art for charity events. I began to donate prints of my work for charity auctions (拍卖). I was glad that I really made a difference. I learned that when you give, you receive happiness.

I think it is very important for teens to express themselves. It’s a way to know yourself more clearly. You can turn your thoughts and feelings into a piece of artwork or a poem.

For example, when you paint, colors can help you express different emotions. When you write a poem, you have to get really honest with yourself and not be afraid to write down what you feel.

Creativity makes you unique and sets you apart from others. Creative ideas also help you make your dreams come true. They help you look at things in a new way.

I hope my story helps people to believe they can overcome their challenges and achieve their dreams. I like to encourage others. I know what encouragement has meant to me.

小题1:The author mentions Mrs. Brock because she ______.

A．taught the author how to paint

B．found the author had a gift for painting

C．influenced the author’s later life greatly

D．encouraged the author to change her life小题2:The author advises teens to ______.

A．learn more about themselves

B．express themselves in art

C．show their thoughts to others

D．dream big and go for it小题3:Which of the following words can best describe the author?

A．Lucky.

B．Hardworking.

C．Positive.

D．Humorous.小题4:What would be the best title for the text?

A．Power of art

B．Happiness of giving

C．Importance of creativity

D．Wonder of encouragement

如图所示，质量为2m的物体A经一轻质弹簧与地面上的质量为3m的物体B相连，弹簧的劲度系数为k，一条不可伸长的轻绳绕过定滑轮，一端连物体A，另一端连一质量为m的物体C，物体A、B、C都处于静止状态.已知重力加速度为g,忽略一切摩擦.

（1）求物体B对地面的压力.

（2）把物体C的质量改为5m，并使C缓慢下降，最终A、B、C又处于静止状态，且C只受重力和绳的拉力作用，求此过程中物体A上升的高度.

简要分析《三国演义》中曹操形象复杂性的成因。

IP网络所提供的分组投递服务，表现出来的能力是多种多样的；在分组投递过程中，用户关注的服务需求可能是（）

A.吞吐量

B.延迟

C.延迟抖动

D.丢包率

长期食用精白米容易引起缺乏的营养素是（）。

A.维生素A

B.维生素D

C.维生素E

D.维生素B₁