问题 单项选择题

梯形图如下图4-5-4所示,该梯形图显示心律失常为()。

A.窦性心律不齐

B.窦性期前收缩

C.房性期前收缩

D.交界性期前收缩

E.室性期前收缩

答案

参考答案:C

解析:梯形图显示第3个心搏激动(黑圆点)起源于A行,且提前出现,在A-V区传导时间稍延长并下传心室,代偿间歇不完全,此图用来解释房性期前收缩。

阅读理解

What do you usually do in your free time? Play sports? Watch TV? How about reading books? You must know the Chinese saying: "Read thousands of books; travel thousands of miles” Books are important in our life. Reading books is good for us. It can help us know and understand the world better. It can help us get a lot of knowledge(知识). It brings us a new and different world that we have never been before. Almost all the great men like reading, like Chairman Mao and Madame Curie.

In a word, books are treasure(财宝) and we must love them. But before you read, remember to choose a good one. Ask your parents or teachers about what books to read. Be sure you are interested in them. There are many different kinds of books: I like biography(传记) because I can learn something from the characters.

What about you? Young friends, please love books and read them, They are very helpful to you.

小题1:Which of the following is TRUE?.

A.Madame Curie doesn't like reading at all.

B.We shouldn't ask teachers about what books to read.

C.Reading books can give us little knowledge.

D.We have to choose a good book before we start to read.小题2:What does the underlined part "Read thousands of books; travel thousands of miles." mean in Chinese?

A.读书百遍,其义自见

B.读万卷书,行万里路

C.滚石不生苔

D.读数千本书就能行数千里路小题3:Reading books can help people_________.

A.get more sleep

B.know little about themselves

C.get money from others

D.understand the world better小题4:What kind of books does the writer like?

A.Story-books.

B.Comic books.

C.Biography.

D.Novels小题5:Which of the following is NOT true?

A.Only reading books can make people succeed.

B.Chairman Mao likes reading very much.

C.Books are helpful to human.

D.Young people should read more books.

单项选择题