阅读理解。 My mother was telling me about ho

题型:阅读理解

问题:

阅读理解。

     My mother was telling me about how she and her family got their first television when she was a

teenager. Of course it was black and white. She said she only watch it at night. She doesn't remember

over watching it in the morning or afternoon. When I was young we had only about 3 or 4 different

channels. My bothers, my sisters and I would sometimes fight about which channel to watch. But we

usually enjoyed the same shows.

     Nowadays we can get hundreds of channels on TV. I can't believe it! There are channels with old

movies, cooking, fishing and so on. It's amazing! There is a channel for everything. I wonder how much

my bothers, my sisters and I would fight if we had hundreds of channels when I was a child. Of course

we had only one television set. These days I notice families with 2 or 3 or more television sets in their

homes. I guess it stops people from arguing over which channel to choose from.

1. In those days, what kind of television sets did people only have?

A. Black and white. 

B. Colors Ones.

C. All kinds of televison set.

2. My mother watched TV _____ when she was young.

A. in the morning

B. in the afternoon

C. at night

3. Nowadays, how many channels can we get on TV?

A. 3 or 4 different channels.

B. Only once channel.

C. Hundreds of channels.

考点:日常生活类阅读
题型:阅读理解

填写除去下列物质中的杂质所需物质名称,并选用主要操作的编码(A、结晶;B、过滤;C、洗气;D、灼烧)

(1)KNO3固体中有少量NaCl,所需物质______;主要操作的编码是______.

(2)FeSO4溶液中有少量CuSO4杂质,所需物质是______;主要操作的编码______.

(3)H2中有少量HCl,所需物质______;主要操作的编码是______.

题型:阅读理解

防止和减少焊接变形的方法中,( )法主要用于薄板的焊接。

A.反变形法

B.确定合理的装配焊接程序

C.刚性固定法

D.散热法

题型:阅读理解

瓢曲主要是指在钢板或带钢()及宽度方向同时出现高低起伏波浪,成为“瓢形”。

A.稀释溶剂

B.薄膜放卷

C.长度

D.凹入高度

题型:阅读理解

计算题:热敏电阻在温度50℃、200℃时其阻值分别为21.20Ω、0.5785Ω。试求:测得电阻2.769Ω时的相应温度。

题型:阅读理解

1919年初,北京大学傅斯年、罗家伦等学生创立了()。

A、青年杂志社

B、新潮社

C、文学研究会

D、创造社

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