对于一般的封闭空气间层，若使其热阻取得最大值，它的合理厚度应确定为()A．10mm

请根据唐人张敬忠《边词》中的诗句“即今河畔冰开日，正是长安花落时”，发挥想像，写一段文字，要求做到情景交融。70字左右。

答：________________________________________________________________________

下列漫画中的行为符合公民基本道德规范要求的是    

阅读理解。

     The poor are very wonderful people. One evening we went out and we picked up four people from

the street. And one of them was in a most terrible condition-and I told the sisters: You take care of the

other three. I take care of this one who looked worse. So I did for her all that my love can do. I put her

in bed, and there was such a beautiful smile on her face. She took hold of my hand as she said just the

words "Thank you" and she died.

    I could not help but examine my conscience before her and I asked what I would say if I was in her

place. And my answer was very simple. I would have tried to draw a little attention to myself. I would

have said I am hungry, I am dying, I am cold, I am in pain, or something, but she gave me much

more-she gave me her grateful love. And she died with a smile on her face. So did that man whom we

picked up from the drain, half eaten with worms, and we brought him to the home. "I have lived like an

animal in the street, but I am going to die like an angel, loved and cared for," he said at the end. And it

was so wonderful to see the greatness of that man who could speak like that, who could die like that

without blaming anybody, without cursing anybody, without comparing anything. Like an angel-this is

the greatness of our people. And that is why we believe what Jesus has said: I was hungry, I was

naked, I was homeless, I was unwanted, unloved, uncared for, and you did it to me.

    And with this prize that I received as a Prize of Peace, I am going to try to make the home for many

people who have no home. Because I believe that love begins at home and if we can create a home for

the poor I think that more and more love will spread. And we will be able through this understanding

love to bring peace, the good news to the poor, the poor in our own family first, in our country and in

the world. When I pick up a person from the street, hungry and I give him a plate of rice or a piece of

bread, I am satisfied. I have removed that hunger. But to a person who is shut out, who feels unwanted,

unloved, terrified, who has been thrown out from society, that poverty is so full of hurt and so

unbearable... And so let us always meet each other with a smile, for the smile is the beginning of love,

and once we begin to love each other naturally we want to do something.

1. What can be learned from the second paragraph? 

A. The woman should have paid more attention to herself.

B. The man couldn't blame anyone.

C. The author is religious.

D. The man died in the street.

2. The purpose of this passage is ________. 

A. to appeal for more donation for the poor

B. to call on the public to love each other

C. to tell the readers the poor are wonderful

D. to express how moved the author is to receive the prize

3. Which of the following can NOT be inferred from the passage?

A. The author has few supporters.

B. The author was somewhat surprised at what the man said.

C. The author is delighted to help others in trouble.

D. The author may agree to solve social problems in soft ways.

4. What's the best title of this passage?  

A. Have Sympathy for the Poor

B. The Poor Are Wonderful

C. Smile and Love

D. Relieve Poverty

金融期货的理论价格要想与金融期货的实际价格达到一致，至少要满足以下哪几个条件( )

A．存在一个理性的无摩擦市场

B．市场处于均衡状态

C．期货价格与现货价格具有稳定关系

D．市场化程度极高

设xOy平面第一象限中有曲线Γ：y=y(x)，过点

，y′(x)＞0. 又M(x，y)为Γ上任意一点，满足：弧段

的长度与点M处Γ的切线在x轴上的截距之差为

(Ⅰ)导出y=y(x)满足的积分、微分方程和初始条件；
(Ⅱ)求曲线Γ的表达式.