中国建设银行重要空白凭证登记簿按年使用。

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       Are you the only child in the family? If so. you are the most important in your family. Parents are the

closest people to you in the world. But a lot of middle school students have a problem. They feel they're

not as close to their parents as before. They even don't think their parents are fair to them.

       Some students tell me that their parents often say a lot to them, but never listen to them. Some say

their parents don't let them play computer games. Others say when they're making phone calls to friends,

their parents like to ask if they're speaking to a boy or a girl.  These make them very unhappy. Some

students even decide to leave home because they' re afraid to tell their parents when they do something

wrong, or when they don't do well in exams. Then they usually think running away is a good way. But

running away may bring them some more problems.

       Problems are part of life. Here are some suggestions for your problems.

       (1) Find a good chance to talk with your parents. Don' t be afraid to tell them your feelings.

       (2)Get help from others, like good friends or teachers.

       (3)Keep a diary to help you know more about yourself and your feelings.

       (4)Show your parents you're growing up. Then they' ll  feel you' re no longer a small child.

       If you follow the advice, you'll have a happy life and never think of running away.

1. According to the article, _______ are the closest people to the only child.

A. teachers                

B. classmates

C. parents                    

D. friends

2. Which of the following is TRUE?

A. Parents don't love their children now.

B. Middle school students don' t have any problems.

C. Many students want to run away.

D. Some students don't think their parents are fair to them

3. We should _______ if we have problems with them.

A. talk with our parents

B. quarrel with our parents

C. leave our parents

D. not tell anyone

4. Why does the author advice us to keep a diary

A. Because it is our homework.

B. Because it can help us practice writing.

C. Because it can help us understand ourselves better.

5. This article is about some middle school students' _______.

A. friends                    

B. hobbies

C. families                  

D. problems

 （1）有探究声音的传播实验中在广口瓶内放一个音乐芯片，瓶口塞上插有玻璃管的软木塞，此时你______听到音乐。（填“能”或“不能”）

（2）用抽气设备抽瓶中空气，在抽气的过程中，你听到音乐声将会___________。

（3）如果把瓶中空气完全抽出我们_________听到声音。（填“能”或“不能”）

（4）该实验表明声音可以在________中传播，但不能在__________中传播

企业应在“自制半成品”总账账户下设置（）二级账户。

A.“原材料”

B.“低值易耗品”

C.“库存半成品”

D.“委托外部加工自制半成品”

某事业单位用银行存款购入三年期、年利率3.8%、面值为50000元的国库券，实际支付价款50000元。则该事业单位的会计处理是（）。

A.增加“长期投资”科目50000元

B.减少“银行存款”50000元

C.增加“事业基金”50000元

D.增加“非流动资产基金—长期投资”50000元

斜置式的空冷器有什么特点？