问题 单项选择题

来自牧区的一位患者,上肢某部位皮肤红肿并出现水泡、中心区组织坏死变黑,分离到革兰阳性粗大杆菌,专性需氧,两端平齐,呈竹节状,引起感染的细菌最可能是

A.产气荚膜梭菌

B.肉毒梭菌

C.炭疽芽胞杆菌

D.蜡样芽胞杆菌

E.产单核李斯特菌

答案

参考答案:C

解析:炭疽芽胞杆菌是致病菌中最大的革兰阳性杆菌,两端齐平,呈竹节状。专性需氧,在普通培养基上生长良好。主要引起食草动物患炭疽病,也可经一定途径感染人类,为人畜共患的急性传染病。炭疽芽胞杆菌可经皮肤、呼吸道和胃肠道侵入机体引起炭疽病。

解答题
阅读理解

Lao Yang was born in a small town. He liked reading when he studied at school. He thought the writers were respected and could get a lot of money. He wrote a lot of stories and posted them to the editorial departments but didn't receive any answers.

  Now he works in a factory. He's busy at work. When he's free, he always reads something. He always remembers he hoped to be a writer when he was young. One day, Xiao Ping, his ten-year-old daughter, came back. She looked worried and didn't eat anything. She said Miss GAO, her Chinese teacher, told them to write a solicit article "My Father" that evening. But she did not know what to write.

  "That's easy," said Lao Yang. "Let me help you."

  Then he sat down to write the solicit article at once. He easily finished it on time. He was sure Miss GAO would like it. But one afternoon he asked his daughter if the article had been chosen to post to the editorial department.

  "My teacher said your article digressed from the subject," said the girl.

  "I don't think so," Lao Yang shouted angrily. "I described just my father!"

小题1:Lao Yang wrote a lot of stories because _______.

A.he likes reading

B.he learned much at school

C.he wanted to be a writer  

D.he wanted to help others小题2:Lao Yang posted the stories to the editorial departments, _______.

A.and he got a lot of money

B.and he became a famous man

C.and he was respected

D.but he failed小题3:As _______, Lao Yang decided to help his daughter.

A.he was a writer

B.he was free

C.he wanted to realize his ideal

D.he wanted to make his daughter happy小题4:Lao Yang hoped _______.

A.his article could surprise the teacher

B.his article could be chosen

C.the children could like his article

D.everyone could soon know him