股票投资组合管理的加强指数法的重点是在复制组合的基础上加强风险控制，其目的在于积极寻

阅读理解

       Every year there is the Spring Festival in China. Usually it is in January(一月)or February(二月). It

is the most important festival in China. So before it comes, everyone has to prepare things. They buy pork, beef, chicken, fruit and many other things. And they often make a special(特别的) kind of food called

"dumplings". It means "come together" in Chinese. On the day before the festival, parents buy new clothes

for their children and children also buy presents for their parents. On Spring Festival's Eve, all the family

members come back to their home. This is a happy moment. They sing, dance and play cards. Others get

the dinner ready. When they enjoy the meal, they give each other the best wishes for the coming year.

They all have a good time.

1.        is the most important festival in China?  

A. Mid-autumn Day                

B. The Spring Festival  

C. Children's Day                  

D. Teachers' Day

2. The Chinese usually have their Spring Festival in        .  

A. January or February  

B. January or March    

C. summer        

D. autumn

3. What's the special kind of food for the Spring Festival in China?  

A. Cakes.            

B. Pudding.          

C. Hotdog        

D. Dumplings.

4. The food "dumplings" means "       ". 

A. be delicious        

B. be hungry          

C. come together  

D. be happy

5. When they are having dinner on Spring Festival's Eve, the Chinese    .

A. eat Candy                     

B. eat moon cakes

C. never drink                    

D. give each other the best wishes

自然选择保留的变异永远都有利于该生物的进化．　　（判断对错）

民警在进行治安检查时，应当将检查的理由和法律依据明确告知被检查单位或被检查人，这样做的目的是（）。

A、防止公安机关及执法民警滥用治安检查权

B、得到被检查单位或被检查人员的理解、配合

C、保障被检查单位或被检查人员的知情权

D、督促被检查单位或被检查人员的发现隐患

数字时间戳是一个经加密后形成的凭证文档，它包括（）

A.需加时间戳的文件的摘要

B.时间戳处理单位收到文件的日期和时间

C.时间戳处理单位的数字签名

D.发送者的数字签名

下列对原文中有关内容的理解，正确的一项是( )。

A．安南的讲话和美国国家情报部门的报告结论都意在指出淡水资源短缺的现状。

B．认为爆发夺水战争的警告是“杞人忧天”的人目光短浅，幼稚可笑。

C．“过去不是未来的指南”的意思是过去不短缺不等于将来不短缺。

D．淡水“无可替代的用途”指种植粮食作物、制造商品和保护人的健康等。