螺纹连接通常用于直径较小的（）钢管。 A.低压 B.高压 C.中压 D.

I can’t remember when I fell in love with music. Maybe it happened when I was feeling blue sometime long ago. I can’t tell you exactly how music makes me feel better. But while listening to music, especially light music, it makes me feel calm and peaceful. Now I am listening to a song named Moon River. It is really a fantastic song. I didn’t like this song at the beginning, but later I found its slow melody and beautiful lyrics deeply touching.

“Oh, dream maker, you heart breaker. Wherever you’re going I’m going your way. Two drifters(流浪者) are off  to see the world. There’s such a lot of world to see.”

Yes. Although there is a long way to go for the drifters and maybe there are many troubles ahead, he seems afraid of nothing. I like music. Music reminds me that human beings have a lot in common even if they come from different countries or backgrounds, because we all have the same feeling or understanding of melodies and words.

小题1:The writer likes     music.

A．popular

B．light

C．classical

D．dance小题2:The writer didn’t like the song called Moon River       .

A．now

B．at all

C．at the beginning

D．very much小题3:From the song, we know that the drifters seem afraid of       .

A．everything

B．police

C．dogs

D．nothing小题4:The writer thinks people who come from different countries have      .

A．the same feeling of melodies and words

B．different understanding of melodies and words

C．different feelings of melodies and words

D．the same understanding of sound and words小题5:The writer began to love music when he/she was      sometime long ago.

A．happy

B．excited

C．tired

D．blue

在做“用电压表和电流表测电池的电动势和内阻”的实验时，电路连接如图1，所提供器材都很新，规格选择合理，电路连接无误，实验时：

①电键闭合前，滑动变阻器的滑动触头应置于______端（选填“A”或“B”）

②实验时，移动滑动变阻器的滑动触头时，电压表的读数总是变化很小，其主要原因是______

③为提高电池内阻测量值的准确性．现再提供一个电阻箱阻对电路进行改进，请在图2虚线框内画出改进后的测量电路原理．

下列哪一表述说明 * * 在本原上具有历史性？（）

A．“根据自然法，一切人生而自由，既不知有奴隶，也就无所谓释放”

B．“没有无义务的权利，也没有无权利的义务”

C．“人人生而平等，他们都从他们的‘造物主’那里被赋予某些不可转让的权利”

D．“权利永远不能超出社会的经济结构以及由经济结构所制约的文化发展”

关于弱型有效市场，下列描述错误的是( )。

A．历史的股票价格信息是最容易获取的信息，因此弱型效率是资本市场所能表现出的最低形式的效率
B．市场的价格趋势分析是徒劳的，过去的股价资料是公开的且几乎毫不费力就可以得到
C．证券价格充分反映了所有公开信息，包括公司公布的财务报表和历史上的价格信息
D．如果能够从股票价格的历史信息中发现某种可以获得超额利润的趋势，那么市场中的每个人也都能够做到，结果超额利润将在争夺中消失

为什么要脱去天然气中的饱和水蒸气？