泌尿外科疾病的常见症状有A．排尿异常 B．尿的异常 C． * * 分泌物 D．疼痛 E．以

写出下列单词的缩写形式。

1. what is __________________

2. he is __________________

3. who is __________________

4. it is __________________

5. they are __________________

6. I will __________________

7. is not __________________

8. can not __________________

9. are not __________________

10. do not __________________

地球上储量最大的水是（　　）

A．海水

B．河水

C．湖水

D．地下水

阅读理解。

     Plants are very important. This is because plants can make food from air, water and sunlight. Animals and

man can't make food from air, water and sunlight. Animals can get their food by eating plants and other

animals. Man gets his food by eating plants and animals, too. So animals and man need plants in order to (为了)

live. This is why there are so many plants around us.

     There are two kinds of plants, flowering plants and non-flowering plants. Almost all the trees around us are

flowering plants. You can know some trees from their flowers and fruits. Non-flowering plants do not grow

flowers. You can't see many non-flowering plants around you.

     If you look carefully at the plants around you, you will find that there are many kinds of plants. Some

plants are large and some are small. Most of them are green. Thanks to the plants around us, we can live on

the earth.

1. Why are plants very important?

A. Because we can get food from plants.

B. Because they can give us shade (阴凉).

C. Because plants can make food from air, water and sunlight.

D. Because they are flowers.

2. We need many plants around us because ________.

A. plants can grow easily

B. plants are green

C. we can get what we need from plants

D. we like all kinds of plants

3. What are the two kinds of plants?

A. Flowering plants and fruits.

B. Non-flowering plants and fruits.

C. Threes and vegetables.

D. Flowering plants and non-flowering plants.

4. There are _________ non-flowering plants than flowering plants around us.

A. much fewer

B. much more

C. much larger

D. much better

5. The best title (标题) for this passage is ______.

A. Food from plants

B. Plants Make Food

C. Man and Animals

D. Plants around Us

债券的发行方式主要有定向发行、承购包销和( )等方式。

A．私募发行
B．招标发行
C．私下发行
D．网上发行

有一种网络保护方式可以完成两个不同类型的SDH网络间的业务保护，这种保护方式被称为（）。