4吨30千克=______吨120分=______时0.56×______=56

经营A种股票、国债、债券及基金等买卖的席位，称为()

A.普通席位

B.特别席位

C.代理席位

D.自营席位

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.

小题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小题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小题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小题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小题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小题6:It’s all right to use our MPS player in _____.

A．schools

B．libraries

C．restaurants

D．museums小题7: What can be the best title of this passage?

A．Music Lovers

B．Music Manners

C．MP3 Players

D．MP3 Earphones

水平弹簧振子做简谐运动，如图所示．若以水平向右为坐标的正方向，振子向左经过平衡位置O点时开始计时，则振子的加速度随时间变化的图象，以下各图中正确的是（　　）

A．

B．

C．

D．

五苓散证与猪苓汤证的共同症状是（）

A.发热

B.舌红

C.脉浮

D.渴欲饮水

E.小便不利

关于肺结核治疗效果的评价，以下哪条不正确（）

A.临床治愈时，空洞仍可存在

B.结素试验可协助判断病情

C.临床治愈时，病灶内仍可残留结核菌

D.痰菌阴转为考核疗效的主要指标

E.临床治愈则不再有咯血