单侧肺通气时V/Q比值（） A.增加 B.减少 C.通气侧等于非通气侧 D.通气侧小

星火电器公司是大华银行的开户单位。某日，李某持星火电器公司开出的现金支票到大华银行取款。

该笔业务属于以下记账规则中的（）。

A.资产与负债（权益）科目同增

B.资产与负债（权益）科目同减

C.资产类科目之间一增一减

D.负债（权益）类科目之间一增一减

Imagine an eco-conscious city where rooftops have been transformed into fertile, green gardens. It's a place where every home is equipped with a system that recycles valuable water resources. In this town, protecting the planet is a way of life. That's how Abby Sharp, 14, Wyatt Peery, 13, and Tom Krajnak, 14, saw their city of tomorrow. The vision won the eighth-graders from Bexley, Ohio, first prize at the 2009 National Engineers Week Future City Competition.

The annual design competition challenges middle school students to use engineering to deal with issues that affect the earth. This year the competition focused on water conservation. Participants had to come up with ways to improve water use in the home. Kids from 38 middle schools across the country competed in the finals. The event took place from February 17-18 in Washington, D.C. More than 30,000 students entered the competition.

Abby, Wyatt and Tom call their winning city Novo Mondum. The name means "new world" in Latin. Novo Mondum sits on the coast of Iceland. The group chose the spot for its wealth of clean energy resources, such as geothermal（地热的） energy and hydropower. Both sources use the power of nature to generate electricity. Geothermal energy draws heat from deep inside the Earth. Hydropower gets energy from flowing water. "Our city is very globally aware," Abby told TFK.

Students team up with a teacher and a volunteer engineer mentor（顾问）to develop their cities. Each group creates a fictional city on SimCity 4 Deluxe, a computer game that allows players to build virtual towns. Then they construct tabletop models of the cities and write essays describing their project. The models must be made using recycled materials and cost no more than $100 to build.

小题1: What’s the main feature of the city designed by the three winners?

A．Making full use of water resources.

B．Turning rooftops into green gardens.

C．Protecting our home — the earth.

D．Costing no money to build小题2:It can be inferred that water conversation is __________.

A．one of the problems that influence the Earth.

B．the main theme of 2009 Future City Competition.

C．one of the issues for the participants to deal with abroad.

D．an easy topic for all the students to design.小题3:According to the passage, Abby, Wyatt and Tom are _____.

A. ninth-graders from Bexley, Ohio.

B. second prize winners at the 2009 Future City Competition.

C. lucky to get the first prize at the 2009 Future City Competition.

D. eighth-graders from Washington, D.C.

小题4:The underlined word “hydropower” means ______________.

A．electric power from burning oil.

B．electric power from burning coals.

C．electric power from deep inside the earth.

D．electric power from moving water.小题5: What’s the main idea of the last paragraph?

A．The process of developing a Future City.

B．How teachers instruct the students in the competition.

C．The process of building virtual towns.

D．What materials should be used in the competition.

炒，是利用锅面的金属，将热量（）给材料。

A、传递

B、对流

C、辐射

D、三种方式结合

若在Excel工作表中修改某个数据，与该数据有关的图表（）。

A.也会作相应改变

B.出现错误

C.不会变化

D.被删除

Few creatures on earth are as cute as the black lion tamarin, and few have as dramatic a story line. Pug-nosed and diminutive, with a comic fringe of hair, these monkeys dwell in trees in small tracts of forest in southeastern Brazil. Or they did until 1905, when they were declared extinct. No one saw a black lion tamarin again in the wild until 1970. Later, in the 1990s, some Brazilian researchers turned up a small set of isolated, inbred populations scattered over a wide region. Since that time, they have been engineering tamarin migration, doing everything they can to save the world’s most distinctive primates.
Although they are no larger than house cats, tamarins have brains big for their size and a family life organized like our own. They live in groups anchored by an adult male andadult female, along with their offspring. When a mother bears young, she usually produces twins, and although members of the group share in their upbringing, it is most often the father who carries them around in the trees, where the families feed on fruits, insects and bird’s eggs.
Unhappily for the lion tamarins, their tree-bound niche began to disappear after the Portuguese landed in Brazil and began clearing forest to make room for Rio de Janeiro, the settlements and farms. As is the case for so many threatened species, the breakup of their habitat sounded the death knell for tamarins, depriving them of the continuity of forest they require to remain abundant and safe from potential threats in any single vicinity. The animals avoid predators by hardly ever coming down from the trees, so even a narrow logging road through a forest can begin the breakup by preventing them from moving from one patch of forest to another.
A simple solution was to build bridges across roads, allowing the monkeys to move from one forest to another. With some lumber and the researchers’ work, habitats that had been separated became continuous again, improving opportunities for migrating and mating.
The next step was to broaden the distribution of the population. The researchers captured two families of black lion tamarins and moved them to a new forest. After a year, the moves were declared a success: Not only had 80 percent of the tamarins survived, but they had also produced new offspring. So far, so good. The researchers had learned the animals could adjust to the new habitats, even if the insects there tasted a little different or the trees were a slightly different size.
The techniques for saving species in the wild vary. Species with less stringent habitat requirements, like wild turkeys, have been rescued by moving them into new settings as well as outlawing their killing. More challenging to preserve are species that require a lot of land, like elephants, and species that have highly specific requirements for habitat and prey -- like black-footed ferrets. Ultimately, as in all challenges, knowledge is power to save wild species from extinction.

Tamarins lost the paradise of their tree-bound niche mainly because the Portuguese ______.

A. cut down trees to make rooms of the houses
B. cleared the forests to set up cities and farms
C. deforested some regions for playgrounds
D. hunted the most distinctive monkeys