翩然piān rán

Father of TV

Invention of television began in 1922 in Rigby, Idaho, the hometown of Philo Farnsworth. At the age of 16, Philo was a very shy boy. Only his science teacher, Justin Tolman, realized that Philo was a special person.

One day after school Mr. Tolman found Philo in the classroom. The boy was making drawings on the chalkboard.

“What are you doing?” Mr. Tolman asked with interest, “What are these drawings?”

“I want to invent things,” Philo answered, “and these are the drawings of one of my first inventions. I have an idea for a way of sending pictures through the air. Please, just let me tell you about it. You are the only person who can understand what I have done.” In the school library Philo had read about a man who had worked on an idea for television, but had failed. Philo was sure that his own idea was better and that he could succeed.

Mr. Tolman was not sure and asked Philo many questions about the drawings. Giving facts and figures, Philo answered every question.

In 1926, Philo sent his drawings to Washington, along with a letter asking for the patent rights on television. Since then, television has become an important business all over the world.

小题1:When he lived in his hometown, Philo was _______.

A．quite different from others

B．an active boy

C．an inventor

D．a hard-working boy小题2:When Philo said “You are the only person who can understand what I have done.” In Paragraph 4, his mood was ________.

A．discouraged

B．trusting

C．guilty

D．hopeless小题3:It took Philo ____ to invent the television.

A．2 years

B．6 years

C．4 years

D．8 years小题4:When Mr. Tolman saw Philo’s drawing, he _______.

A．did not believe it was Philo’s invention

B．believed Philo could succeed

C．believed Philo was a special person

D．did not believe Philo could succeed

电烧伤休克时可表现为()

A．意识不清

B．呼吸心跳停止

C．神志丧失

D．躁动

E．瞳孔缩小

一个氨基酸的α氨基和另一个氨基酸的α羧基脱水缩合，形成了新的共价键即（）。

A.氢键

B.离子键

C.肽键

在前牙累及近中切角的深龋修复中，选用最佳的洞衬材料为（）。

A．丁氧膏

B．磷酸锌粘固粉

C．聚羧酸锌粘固粉

D．氢氧化钙

E．银汞合金

预处理单元对样品作进一步处理和调节，如（）的调节。