论述泡菜类产品加工工艺流程和操作要点。

阅读理解。

     You probably know you should say "please" and "thank you" at restaurants. You probably know the rules

of a library. You know you should respect and be nice to your classmates. But do you have music manners?

     Keep It Down! You have to notice the volume of your music. You should not play your music so loud

that everyone around you can hear it. Some people might even get angry. Usually, when you play the music

loud on an MP3 player, other people can't hear the words of the song. They just hear a loud sound. Not one

wants to listen to this. Very loud music can also be bad for your cars, so even if you are alone when listening

to our MP3 player, you shouldn't have it turned up too high.

     Take Them off! You need to know when to turn your MP3 player off and put it away. Libraries and

schools don't allow MP3 players. There are other places, like museums, that don't have rules, but is would

be rude to have your MP3 player on. Sometimes, it just doesn't make sense to listen your MP3 player at event. Why would you listen to music at a play, a movie or a sporting event? your would miss what is going on and

others would wonder why you even came.

     Take One Out! Once is a while it's okay just to take out one earphone and not other. Imagine you are

listening your MP3 player when someone asks you the way. It would not be rude to take out one earphone,

tell him the way, and put back the earphone and continue listening. You can also do this when you order

food at a fast-food restaurant or when you answer the telephone and it's not for you.

     It's Your Choice! There are times when you need to decide what is best. For example, some people can

listen to music on their MP3 Players when read books, while others think it is disturbing. In cases like this,

you need to do what seems right for you.

1. The underlined word "volume" in Paragraph Two probably means _____.

A. the type of music

B. the amount of a sound

C. the length of a song

D. the colour of and MP3 player

2. No one wants to listen to _____ from others' MP3 player.

A. a loud sound

B. sad stories

C. a long movie

D. the words of a song

3. We should turn down the music when we are alone because loud music _____.

A. is not enjoyable

B. makes us tired

C. is bad for MP3 players

D. huts our ears

4. If we listen to our MP3 player at a play, _____.

A. the theater won't allow it

B. the actors will get angry

C. others won't hear the play well

D. we will miss part of the play

5. We can take once earphone out when we _____.

A. show others the way

B. talk to fiends on the phone

C. watch a sporting event

D. have dinner with our parents

6. It's all right to use our MPS player in _____.

A. schools

B. libraries

C. restaurants

D. museums

7. What can be the best title of this passage?

A. Music Lovers

B. Music Manners

C. MP3 Players

D. MP3 Earphones

肝郁气滞证胁痛的特点为

A．寒战发热伴有咳嗽气急、胸痛等症
B．冬春
C．寒热往来，汗出热退，休作有时为特征
D．春夏
E．夏秋

某学生用常见的几种化学试剂做了一个有趣的实验．

所用的化学试剂有：石灰石，稀盐酸、浓烧碱溶液．

仪器有：试管、单孔塞、导管、可乐瓶、注射器等．

（1）第一步：用可乐瓶收集一种气体，所用试剂为                        ，仪器为                          ，化学方程式为                                                  ；

（2）第二步：向瓶内注射一种试剂，振荡后可乐瓶变瘪了，所用试剂为                              ，化学方程式为                          

（3）第三步：再向瓶内注射一种试剂，振荡后可乐瓶又变鼓了，所用试剂为                      ，化学方程式为                                     ．

某分部工程双代号网络计划如下图所示，其关键线路有（）条。

A．2

B．3

C．4

D．5