“世界人种大熔炉”指的是[ ] A．非洲 B．北美洲 C．欧洲 D．南美洲

回眸“十一五”，改革开放纵深发展，经济社会发展又好又快。“十二五”是全面建设小康社会的关键时期，是深化改革、加快经济发展方式转变的攻坚时期。阅读材料，回答问题：

表：“十一五”期间我国国家财政收入、城镇居民可支配收入增长情况(单位：%)

年份	2005	2006	2007	2008	2009	2010
财政收入	18.5	24.24	31	23.1	11.7	30.8
城镇居民可支配收入	10.33	12.09	17.24	14.47	8.83	13.63

(1)请你分析表格中所反映的经济信息。（4分）

(2)针对表格中的经济现象，有人认为：国富民就富。请运用经济生活的知识进行辨析。（8分）

A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world’s poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.

Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they cannot sell quickly.

But in nineteen ninety-five a teacher in northern Nigeria named Mohammed Bah Abba found a solution. He developed the “Pot-in-Pot Preservation/Cooling System.” It uses two round containers made of clay. A smaller pot is placed inside a larger one. The space between the two pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A wet cloth covers the whole cooling system.

Food stored in the smaller pot is kept from spoiling through a simple evaporation(蒸发) process. Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.

The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. Some foods can be kept fresh this way for several weeks.

People throughout Nigeria began using the invention. And it became popular with farmers in other African countries. Mohammed Bah Abba personally financed the first five thousand pot-in-pot systems for his own community and five villages nearby.

In two thousand, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being. A committee considers projects in science and medicine, technology, exploration and discovery, the environment and cultural history. Winners receive financial assistance to help develop and extend their projects.

小题1:Which is the best title of the passage?

A．A Few Degrees can Make a Big Difference for Storage

B． A Cool Way to Keep Food from Spoiling

C． Spoiled Food Creates Health Risks and Economic Losses

D． The Evaporation Process Creates a Drop in Temperature小题2:What does the third paragraph mainly talk about?

A．the structure of the invention

B．the usage of the invention

C．the cost of the invention

D．the inspiration of the invention小题3:What is it that essentially keeps the food in the container from spoiling?

A．the wet cloth covering the cooling system.

B．the moving drier air outside the container

C．the wet sand between the containers

D．a drop in temperature by evaporation小题4:According to the passage, where can we possibly see the invention?

A．rich and advanced families

B．scientific experiment laboratory

C．poor and underdeveloped area

D．supermarket needing to store goods小题5:We can know from the passage that Mohammed Bah Abba ____________.

A．invented the controversial cooling system

B．financed the systems in all communities

C．received financial assistance for his invention

D．invented more complicated cooling system later

在蛋白质的合成与分泌的研究中分别使用了同位素示踪技术、分离技术和突变体研究技术，说明这些技术的研究结果各说明了什么问题？

涤纶机织布制女上衣 ( )

导致地层破裂的无关条件的是（）。

A、井涌关井时套管压力太高

B、钻井液密度太高

C、环形空间过大的压力损失

D、过大的抽吸压力