下列应用不涉及氧化还原反应的是（） A．实验室在硫酸亚铁中_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

下列应用不涉及氧化还原反应的是（）

A．实验室在硫酸亚铁中加少量铁粉

B．医药上用小苏打治辽胃酸过多

C．工业上利用黄铁矿炼铁

D．Na₂O₂用作呼吸面具的供氧剂

答案

答案：B

凡是有元素化合价升降的反应都是氧化还原反应，碳酸氢钠和盐酸反应是复分解反应，不是氧化还原反应，其余都是的，答案选B。

阅读理解

配对阅读上面是五个人的兴趣描述，下面是七个网站的简介。请将五个人与他们感兴趣的网站配对，

( )1. George loves dogs very much. He regards dogs as his friends. Now he keeps
           two in his house. He is interested in all kinds of information and news about them.
( )2. Amy is a school girl. Reading short stories is her hobby. Every night, she would
            like to read one after finishing her homework.
( )3. Judy likes listening to pop songs. She would like to download (下载) some to her
            MP4 so that she can enjoy them wherever she is.
( )4. Henry is a very active boy. He likes playing ball games as well as watching them.
           He is also interested in searching news about games and sports stars.
( )5. Kate likes surfing the internet for ideas. Mother's Day is coming. She wants to do
          something different to thank her mother this year.

A. http: // www. workpage. com Classical Chinese novels can be found here, such
   as Journey to the West, Legend of White Snake and Three Kingdoms. You can know
   something about Chinese history by reading the long stories. The are good for you to
   read online.
B. http: // www. search. com Do you want to search for the perfect gift
   suggestions? We have many for you, from expensive gifts to special and new ones.
   You will be pleased with our advice. Click our website now.
C. http: // www. ez-tracks.com The latest and the greatest songs of all times and
   today like Katy Perry's I Kissed a Girl with EZ-Tracks can be found here. You can
listen online or download some for future listening.
D. http:// www. classical. com This website is good for those who are interested in
    reading stories and poems. You can experience the joy by reading such fine short
    works. We hope they will excite people again into discovering the happiness that the
     excellent e-books bring.
E. .nationalgeographic.com You can get animal pictures, photos, videos, facts, photo
     galleries and more in our web. It tells you a lot about living styles of animals, the
     animal structure and the food they eat. You can also read news about them here.
F. http://www.mzone.com Watch and listen to different kinds of music videos online,
    such as classical music, pop music, country music, rock and roll, etc. Get the latest
    music videos, news interviews and more.
G. The best sports around the world include football, basketball, golf, rugby, WWE,
    boxing, tennis and more. Get the latest sports scores, professional players, team
    news, videos, schedules and fantasy games.

填空题

青藏地区以_______高原为主体，是我国地势的第_______级阶梯，山脉纵横，地面起伏很大，“远看是山，近看成川”是青藏高原的真实写照。另外，这里分布着一个典型的内陆高原盆地——_______盆地。