问题 单项选择题 A1/A2型题

以下属于外鼻静脉特点的是()。

A.分支多,走行复杂

B.血管表浅,管壁厚且有弹性

C.无静脉瓣,血液可以逆向流动

D.面静脉可与海绵窦相通

E.最后汇入颈外静脉

答案

参考答案:C

解析:鼻面部的静脉可经内眦静脉和眼上、眼下静脉而与海绵窦相通,静脉管内无瓣膜使血液可上下流动,故当鼻、面部感染和疖肿时,若治疗不当或用力挤压可能引发海绵窦栓塞或其他颅内并发症。

单项选择题
阅读理解

China launched its first space lab module Tiangong-1 on the evening of September 29, 2011, at the Jiuquan Satellite Launch Center in northwestern China.

President Hu Jintao praised the successful launch of China's first space lab module Tiangong-1, and shook hands with the staff of the Beijing Aerospace Flight Control Center.

Premier Wen Jiabao and He Guoqiang also shook hands with the staff at the Jiuquan Satellite Launch Center to congratulate on the success.

Tiangong-1, which is scheduled to dock(与……对接) with the Shenzhou-8 spacecraft later this year, will pave the way for building China's first space station.

During its two-year service life, Tiangong-1 will mainly conduct four tasks, such as experiments of autonomous rendezvous(自主交会) and docking procedures(程序) with the Shenzhou-8, -9, and -10 spacecrafts in the coming launches, aiming to establish the country's first space lab, according to Wu Ping, spokesperson for China's national space administration.

According to the plan for China's manned space program, the Shenzhou-10 will be a manned spacecraft, possibly carrying a female Chinese astronaut who will test manual space rendezvous and docking with the Tiangong-1.

Functioning as a target spacecraft, Tiangong-1 is expected to become China's first space laboratory when it connects to the above mentioned spaceships.

小题1:When Tiangong-1 was launched, _____were at the Jiuquan Satellite Launch Center.  

A.Premier Wen Jiabao and He Guoqiang

B.Premier Wen Jiabao and President Hu Jintao

C.He Guoqiang and President Hu Jintao

D.President Hu Jintao and some staff小题2:It is reported that Tiangong-1 will conduct _____ tasks during its service life.

A.two

B.three

C.four

D.five小题3:The underlined word “establish” here means _____________.

A.prepare

B.build

C.discover

D.use小题4:The _____ spacecraft will be carrying a female Chinese astronaut.

A.Shenzhou-7

B.Shenzhou-8

C.Shenzhou-9

D.Shenzhou-10小题5:Which of the following is WRONG according to the passage?

A.Tiangong-1 was launched in the evening.

B.The service life of Tiangong-1 is about two years.

C.China expects Tiangong-1 to be the first space lab.

D.Tiangong-1 will dock with the Shenzhou-8 spacecraft next year.