目前应用最广泛的观察记录方法是（）。A、计数法 B、演算法 C、描述法 D、推理法

提高传播效果的基本原则有（）。

A.创造良好的传播环境

B.树立良好的传播者形象

C.注重信息的选择和制作

D.正确选择传播媒介

E.以受传者的需求为传播目的

阅读理解。

     While scientists are worried that humans are causing higher temperatures on the Earth, a Maryland man, Ace, thinks we can save the world by spraying (喷射) huge amounts of water into the air.

     Ace told the McClatchy News Service that at least 1,000 places should be chosen to spray water. The water would be sprayed between 20 and 200 feet into the air. Thousands of tons of seawater would be

sprayed for years at a time.

     The 1,000 sites would be picked after more studies. They would be mostly in the Northern

Hemisphere. Ace says he would avoid tropical (热带的) areas of the globe. He says water turns to rain

too quickly in these areas for his plan to work.

     The water would be changed into vapor. That process requires heat. The water vapor would rise

above the Earth. The vapor would form clouds. The clouds would help in several ways.  They would cool the Earth by reflecting sunlight. They would later turn into rains. The rains would provide another way of

cooling the Earth.

     Ace’s plan has gotten some support from a limited scientific study. Kenneth Caldeira is a climate

scientist. He works at the Carnegie Institution’s Department of Global Ecology at Stanford University in

California. Caldeira tested some of Ace’s figures on a computer program. The computer model is used by top scientists to study global climate change. The model showed that the plan might work.

     "More tests are planned in 2009. Ideas like Ace’s should be considered carefully and with an open

mind," Caldeira said. “Every brilliant invention in the history of technology looked a little bit mad when first put forward.”

1. What’s the purpose of Ace’s plan?

A. To reduce air pollution.      

B. To make summer cooler.

C. To offer dry areas more rain.        

D. To solve the problem of global warming.

2. According to Ace’s plan, ________.

A. planes would be used to spray water

B. it would be best to spray water on rainy days

C. seawater would be sprayed high into the sky

D. 1,000 sites in the Southern Hemisphere would be chosen

3. Why wouldn’t Ace spray water in tropical areas?

A. Water is changed into vapor too quickly.        

B. Water turns to rain too quickly.

C. It is hard for vapor to form clouds.    

D. It is bad for local plants to have too much rain.

4. It seems that Caldeira _________.

A. takes Ace’s plan seriously      

B. thinks Ace’s idea too crazy

C. doesn’t believe the computer’s result        

D. agrees to carry out Ace’s plan right now

5. According to the passage, Ace can be best described as __________.

A. mad  

B. creative

C. mysterious

D. optimistic

对于交通性气胸患者，采用胸腔闭式引流治疗时，错误的说法是

A．液气胸患者可选腋前线第4-5肋间，或在X线透视下选择适当部位

B．插管部位多取锁骨中线外侧第2肋间

C．导管另一端应置于水封瓶水面下1～2cm

D．水封瓶玻璃管中液面不再波动时，即证明肺已全部复张，可拔除导管

E．导管水封瓶水面下过深气体引流不完全

为了增强房屋整体的刚度和墙体的稳定性，需设置（）

A.构造柱

B.联系梁

C.圈梁

D.支撑系统

具有收敛止血作用的药物是（）

A.三七

B.白及

C.仙鹤草

D.棕榈炭

E.血余炭