问题 多项选择题

植物性神经系统对内脏活动调节的特点有()

A.具有紧张性作用

B.均有双重神经支配

C.一般情况下,双重神经拮抗作用是对立统一的

D.调节作用的效果往往与效应器的功能状态有关

E.交感神经阻滞则副交感神经效应加强

答案

参考答案:A, C, D, E

选择题
阅读理解

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