左心衰竭与支气管哮喘的主要鉴别点为() A.肺部干湿啰音 B.夜间呼吸困难 C.伴咳

题型:单项选择题

问题:

左心衰竭与支气管哮喘的主要鉴别点为()

A.肺部干湿啰音

B.夜间呼吸困难

C.伴咳嗽

D.坐起时能够缓解呼吸困难

E.伴气喘

考点:北京住院医师急诊科Ⅰ阶段心脏内科及CCU心脏内科及CCU题库
题型:单项选择题

Beijing ?(13, July) China sent up a new data relays atellite (数据中继卫星), Tianlian I -02, on Monday at the Xichang Satellite Launch Centre in South-western Sichuan province.The new satellite will promote the country's satellite communication network for space docking (对接).

The satellite was launched on a Long-March-SC carrier rocket at 11:41 p.m., sources at the centre told Xinhua News Agency.The satellite separated from the rocket 26 minutes after its launch and was then successfully delivered into a geostationary transfer orbit (地球同步转移轨道).

Developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation, the satellite is the country's second data relay satellite.The first, Tianlian I -01, was launched on April 25.2008.

The two satellites will form a network to improve communications between China's spacecraft and bases on Earth, according to the centre.They will also be used to help the nation's first space docking, scheduled for the second half of this year.

As planned, China will launch space module Tiangong-I (天宫1号), which was designed as a platform that will dock with an unmanned spaceship, Shenzhou, for the county's first space-docking mission this year.

Two more Shenzhou spaceships will dock with Tiangong-I next year, and one will be manned by two or three astronauts, according to China Manned Space Engineering Office, which was the main user of the Tianlian I series data relay satellites.

"The new satellite can cover a greater area to track and command the country's space vehicles m low-Earth orbits, such as manned spacecraft and remote sensing satellites, from a higher position m outer space.Only three satellites of this kind are needed to form a global communication network, and China has two now." Pang Zhihao, a researcher and deputy editor-in-chief of Space International, said.

The satellite could also equip astronauts with real-time communications, which will benefit the county s future manned space flights, he said.

小题1:What is the main purpose to send up Tianlian I -02 ?

A.To test the function of a Long-March-SC carrier rocket.

B.To carry some astronauts into space to do some research.

C.To send more information and clearer pictures to mobile phones on the earth.

D.To promote the country's satellite communication network for space docking'小题2:From the passage we know           .

A.one more such satellite is needed to form a global communication network

B.the satellite was developed by China Manned Space Engineering Office

C.it was less than three years since China launched its first date relay satellite of this kind

D.the satellite could help track and command space vehicles in orbits because it's lower in position小题3:Which of the following is TRUE according to the news report?

A.Shenzhou Ⅷ is a manned spaceship.

B.Tiangong- I will dock with three Shenzhou spaceships next year.

C.the satellite is of great importance to China's space exploration.

D.china’s first ^a06 docking will be done in the second half of next year.小题4:The best title of the passage could be _____.

A.China Launched a New Space Shuttle

B.China's Plan for Space Exploration

C.China’s Progress m China's Space Exploration

D.New Satellite Helps China's Space Exploration

题型:单项选择题

根据我国《合同法》第十六条的规定,要约生效的时间是( )。

A.要约到达受要约人的时间
B.要约返回的时间
C.要约人发出要约的时间
D.受要约人接到要约前

题型:单项选择题

华西协和大学系国内十三所基督教大学之一,具有同类大学的共同特征,其中,不包括()

A.西洋化

B.封建化

C.基督化

D.国际化

题型:单项选择题

C3位酮基与异烟肼反应生成浅黄色的

A.异烟酸酯
B.异烟腙
C.异烟肟
D.异烟酸
E.异烟酰胺

题型:单项选择题

四个输入端的TTL与非门,实际使用时如只用两个输入端,则其余的两个输入端都应()。

A、接高电平;

B、接低电平;

C、高低电平都可以

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