下列关于EBV的描述错误的是（） A.是一种嗜淋巴细胞的病毒 B.是一种新的人类疱疹

在“探究凸透镜成像的规律”实验中，所用凸透镜的焦距是10cm。

(1)将点燃的蜡烛、凸透镜放在如图所示的位置，移动光屏，在光屏上得到了清晰的倒立、_____________(选填“放大”或“缩小”)的实像;__________________(填光学仪器名称)就是利用这一成像规律工作的。

(2)保持凸透镜位置不变，若将蜡烛远离透镜，仍要在光屏上得到清晰的像，光屏应向________________(选填“靠近”或“远离”)透镜的方向移动，此时的像与原来的像相比______________(选填“变大”或“变小”)。

一个组织的管理层次可以分为三个层次，高层、中层和基层。下列管理层次中不属于高层的是（）。

A.总经理

B.总裁

C.部门经理

D.CEO

热甚发痉方宜选：

A．沙参麦冬汤
B．益胃汤
C．左归丸
D．补肝汤
E．补肺汤

阅读理解。

     Half of the world's population is affected by Asian monsoons (季风), but monsoons are difficult to

predict. American researchers have put together a 700-year record of the rainy seasons, which is

expected to provide guidance for experts making weather predictions

     Every year, moist (潮湿的) air masses,known as monsoon,produce large amounts of rainfall in India,

East Asia, Northern Australia and East Africa. All this wet air is pulled in by a high pressure area over the

Indian Ocean and a low pressure area to the south.

     According to Edward Cook, a weather expert at Columbia University in New York, the complex

nature of the climate systems across Asia makes monsoons hard to predict. In addition, climate records

for the area are too recent and not detailed enough to be of much use. Therefore, he and a team of

researchers spent more than fifteen years traveling across Asia, looking for trees old enough to provide

long-term records. They measured the rings, or circles, inside thousands of ancient trees in more than

300 places.

     Rainfall has a direct link to the growth and width of rings on some kinds of trees. The researchers

developed a document they are calling a Monsoon Asia Drought Atlas. It shows the effect of monsoons

over seven centuries, beginning in the 1300s.

     Professor Cook says the tree-ring records show periods of wet and dry weather. "If the monsoon

basically fails or is a very weak one, the trees affected by monsoons at that location might put on a very

narrow ring. But if the monsoon is very strong, the trees affected by that monsoon might put on a wide

ring for that year. So, the wide and narrow ring widths of the chronology that we developed in Asia

provide us with a measure of monsoon variability." With all this information, researchers say they can

begin to improve computer climate models for predicting the behavior of monsoons.

     "There has been widespread famine and starvation and human dying in the past in large droughts. And

on the other hand, if the monsoon is particularly heavy, it can cause extensive flooding." said Eugene

Wahl, a scientist with America's National Oceanic and Atmospheric Administration. "So, to get a sense

of what the regional moisture patterns have been, dryness and wetness over such a long period of time in

great detail, I would call it a kind of victory for climate science."

1.What's the passage mainly about?

A. The effects of Asian monsoons.            

B. The necessity of weather forecast.

C. The achievements of Edward cook.        

D. A breakthrough in monsoon prediction.

2. It is difficult for experts to predict Asian monsoons because _______.

A. it is hard to keep long-term climate records.

B. they are formed under complex climate systems.

C. they influence many nations.        

D. there is heavy rainfall in Asia.

3. What can be inferred from the passage?

A. Long and detailed climate records can offer useful information for monsoon research.

B. The Monsoon Asia Drought Atlas has a monsoon record for about 1,300 years.

C. The trees affected by monsoon grow fast if the monsoon is weak.

D. The rainfall might be low although the monsoon is strong in monsoon-affected areas.

4. According to Professor Cook, the rings of the trees _______.

A. determine the regional climate.          

B. have a great influence on the regional climate.

C. offer people information about the regional climate.

D. reflect all kinds of regional climate information.

5. What do we know about the research according to Eugene Wahl?

A. It is a great achievement in climate science.

B. It should include information about human life in the past.

C. It has analysed moisture models world wide,

D. It will help people prevent droughts and floods.

6. Which of the following best describes the tone of this passage?

A. Matter-of -fact   

B. Pessimistic    

C. Humorous    

D. Friendl

某工程第三层混凝土现浇楼面的平整偏差达到10mm，其后续作业为找平层和面层的施工，这是应该（）

A．加固处理

B．修补处理

C．不作处理

D．限制使用