试题与答案

向21.6gFe粉和Cu粉的混合物中加入1L1mol/LHNO3,充分反应,放出

题型:选择题

题目:

向21.6 g Fe粉和Cu粉的混合物中加入1 L 1 mol/L HNO3,充分反应,放出NO气体且金属有剩余。则反应后溶液中c(NO3-)为(忽略溶液体积的变化)    [ ]

A.0.45 mol/L    

B.0.6 mol/L   

C.0. 75 mol/L 

D.0.9mol/L

答案:

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参考答案:A, B, C, D

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题型:阅读理解

阅读理解

     All over my garden I've planted nothing but roses, because I especially love the flower. A close

friend came for a visit the other day. I told her that she should pick a bunch of roses to beautify her

bedroom. I promised that the smell of the roses would be wafted far, far away.

     That girl friend of mine, walking into the garden in high spirits, smelt here and there, but in the end

she didn't pick a single rose. I said that she could pick many flowers; I told her that I was not a flower

farmer and didn't make a living out of them. Saying so, I raised the scissors for the sacrifice of the flowers, but she stopped me, crying no, no, no!

     To cut such beautiful roses would hurt one, she said. With her hands seizing at my sleeves, she told me

that by no means should they be cut. Roses are the smiling face of the earth, and who could be so

ironhearted as to destroy such a charming smile?

     My mind was shocked: the ugly earth, the tough earth, the plain earth-it is for the reason of that smile

that it wins the care and pity of people.

1. The writer plants nothing but roses in her garden probably because ________.

A. she can make money out of them

B. her friends like them

C. she enjoys the roses very much

D. the roses sell well

2. The underlined word "wafted" in Paragraph 1 is closest in meaning to "________".

A. given off  

B. lost

C. destroyed  

D. thrown away

3. Why did the writer's close friend refuse to pick a single rose?

A. Because the roses were not beautiful.

B. Because she loved the roses very much.

C. Because she did not like this kind of roses.

D. Because the writer did not want to give her any.

4. What is the best title for the passage?

A. The Pity of People to the Roses

B. A Lover of Flowers

C. A Lovely Rose Garden

D. The Smiling Face of the Earth

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