问题 单项选择题

下列关于气雾剂的描述错误的是

A.气雾剂按其医疗用途可分为吸入气雾剂、皮肤和黏膜用气雾剂、空间消毒用气雾剂

B.气雾剂按相组成分类有二相气雾剂和三相气雾剂

C.按分散系统可分为溶液型、混悬型、粉末气雾剂

D.散系统可分为按分溶液型、乳浊型、粉末气雾剂

E.按分散系统可分为溶液型、粉末气雾剂、泡沫型

答案

参考答案:C

阅读理解

阅读理解。

     "If you want to see a thing well, reach out and touch it!"

     That may seem a strange thing to say. But touching things can help you to see them better.

     Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how

smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball,

you really see it. With your skin, you can feel better. For example, your fingers can tell the difference

between two coins in your pocket. You can feel a little drop of water on the back of your hand, too.

You can even feel sounds against your skin. Have you ever wanted to know why some people like very

loud music? They must like to feel the sounds of music.

     All children soon learn what "Don't touch!" means. They hear it often. Yet most of us keep on

touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something

well, we have to touch it. The bottoms of our feet can feel things, too. You know this when you walk on

warm sand, cool grass or a hard floor. All feel different under your feet.

     There are ways of learning to see well by feeling. One way is to close your eyes and try to feel

everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your

skin. At first, it is not easy to feel these things. You are too used to them!

      Most museums are just for looking. But today some museums have some things to touch. Their signs

say, "Do touch!" There you can feel everything on show. If you want to see better, reach out and touch.

Then you will really see!

1. By touching things _____.

A. you will have a strange feeling

B. you will learn how to reach out your hand

C. you can learn more about them

D. you can tell what colors they really are

2. Which of the following can be the best title of the story?

A. Touching by Feeling

B. To See or to Feel

C. To See Better-Feel

D. Ways of Feeling

3. Which of the following parts can tell you the difference between two coins in your pocket?.

A. Your fingers.

B. Your eyes.

C. Your skin.

D. Your back.

4. What can't your skin feel?.

A. Sounds.

B. Darkness.

C. Water.

D. Coins

5. Which of the following is NOT true?

A. Touching is helping us to see better.

B. Our skins may help us enjoy music.

C. People don't have to learn to feel.

D. Visitors can't feel the things on show in any museums

单项选择题