题干

已知NO和O2经反应①和反应②转化为NO2,其能量变化随反应进程的图示如下。
①2NO(g) N2O2(g)△H1平衡常数K1
②N2O2(g)+O2(g) 2NO2(B)△H2平衡常数K2
下列说法不正确的是(   )

A:△H1<0,△H2<0

B:2NO(g)+O2(g) 2NO2(g)的平衡常数K=K1/K2

C:表示2NO(g)+O2(g) 2NO2(g)的△H=△H1+△H2

D:反应②的速率大小决定2NO(g)+O2(g) 2NO2(g)的反应速率

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B

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I liked buying clothes, so I had a lot of clothes! One day, I looked at my closet(衣橱) and it   26   me. Pictures of homeless kids came into my mind. I thought of them begging(乞讨) on the streets with pretty old   27  , so I decided to do something for them. 

I took several bags and   28   them with clothes, leaving my closet half full.  

It was in the afternoon. I saw some   29   kids on the street. They were like   30   without a shepherd(牧羊人). My heart   31  .

I handed two big boys the   32  , and they asked, “What are these?”

I said, “They are all yours. You share these with your family. Okay?” 

They didn’t   33   for a few minutes, but when they did, my   34   was full of a different feeling, like two big arms hugged(拥抱) my heart.

“Thank you. We will also   35   these with them!” they looked at the other kids on the street and said.  

I was very moved by the experience, and I hope everyone would love to clear their closets for homeless children. 

26A. worried                B. surprised                  C. liked                

27 A. toys                     B. friends                         C. clothes             

28 A. covered               B. carried                         C. filled               

29A. small                    B. homeless                  C. different           

30 A. girls                    B. boys                        C. sheep

31 A. beat                     B. jumped                    C. broke               

32 A. bags                    B. pictures                    C. hopes        

33 A. speak                   B. see                           C. cry                  

34 A. hand                    B. life                          C. heart

35 A. have                    B. take                         C. share