The students are busy in _____ for the t

题型:选择题

问题:

The students are busy in _____ for the test. [ ]

A. prepare    

B. prepares      

C. prepared    

D. preparing

考点:动名词
题型:选择题
小明和小华做抛硬币的游戏,一次实验抛两次,实验结果如下:
 实验结果的次数小华 小明 
 两个正面的次数 2 1
 不是两个正面的次数8 9
在小华的10次实验中,抛出两个正面______次,出现两次正面的可能性为______%,小明抛出两个正面的可能性是______%.
题型:选择题

第三节:阅读理解(共15小题;每小题2分,满分30分)

(A)

JIUQUAN, Gansu Province, Sept. 6(Xinhua) ---- China’s manned spacecraft Shenzhou-7 will be launched at an appropriate time between Sept. 25 and 30 from the Jiuquan Satellite Launch Center in northwestern Gansu Province, a spokesman said here on Saturday. The mission will accomplish the first spacewalk by Chinese astronauts.

“All the major systems involved in the launching are now in the final preparation. The main tests for the spacecraft, the Long-March II-F rocket, suits for the space walk and a satellite accompanying the fly have also been finished, ” said the spokesman.

In addition, the ground control system is fully prepared, including the launch site, the landing site, and the communication for observation and control.

When Shenzhou-7 enters its orbit, one of the three taikonauts will conduct a space walk, said Zhao Changxi, a senior scientist with the project, earlier.

According to Zhao, cameras would be fixed outside and inside of the ship for live broadcasting of the space walk.

While the last mission of Shenzhou-6, with a crew of two, was aimed at several days of manned flight, this time the task might be more stringent as one of its main goals is the space walk.

Earlier reports said a crew of six astronauts had been chosen for the mission, with three manning the spacecraft and three substitutes. 

China successfully put two manned spacecrafts into orbit in 2003 and 2005 respectively, becoming the third country to send an astronaut into space after the United States and the former Soviet Union(now Russia).

56. What is the main idea of the passage?

A. Shenzhou-7 is better equipped than the last two spaceships.

B. Shenzhou-7 will be more successful than the last two launches.

C. All the systems involved in the launching have been prepared.

D. China is ready for the launching of Shenzhou-7.

57. We can learn from the passage ________.

A. This will be the third time for Chinese astronauts to have a space walk

B. Three of the six astronauts chosen for the mission will walk in space

C. The space walk will be live broadcasted on TV

D. Everything has been prepared except communication system

58. The underlined word”stringent”most probably means

A. challenging   B. encouraging   C. interesting   D. moving

题型:选择题

关于心源性休克,下列哪一项描述是正确的

A.不具备一般休克的病理生理特点
B.其死亡率低于感染性休克
C.见于所有曾经发生过心力衰竭的病人
D.是心脏泵衰竭的极期表现

题型:选择题

在收缩喷管内,亚声速绝热气流沿流动方向( )。

A.流速减小

B.压强增大

C.密度增大

D.温度下降

题型:选择题

药物类型

止血药

A.甲巯咪唑(他巴唑)
B.地巴唑
C.硝酸异山梨酯
D.吲哚美辛
E.氨甲苯酸(止血芳酸)

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