隐性黄疸时，血清总胆红素含量为A．1.71～3.42μmol/L B．5.13～6.

The largest campaign of killing rats in history is set to poison millions of rats on the sub-Antarctic island of South Georgia. Scientists say the campaign planned for 2013 and 2014 will restore beautiful South Georgia to the position it once held as the world’s most important nesting sites for seabirds.

It was sailors in the late 18th century who unintentionally introduced rats to what had been a fresh environment. “If we can destroy the rats, at least 100 million birds will return to their home on South Georgia,” says Tony Martin, a biology professor at the University of Dundee who was invited to lead the project.

South Georgia is by far the largest island to get rid of animals that destroy native wildlife after being introduced deliberately or accidentally by people. Though rats and mice have done the most damage, cats, foxes, goats, deer, rabbits and other species have been targeted in the campaigns around the world.

South Georgia is seven times the size of New Zealand’s Campbell Island, currently the largest area ever killing rats. The successful war against Campbell Island rats was carried our in 2001 with 132 tons of poison dropped from five helicopters.

“New Zealand pioneered the techniques for ridding islands of rats and in fact our operation on South Georgia is based on New Zealand’s technology.” Says Martin. “Some New Zealanders will be helping our campaign, including our chief pilot, Peter Garden, who was also chief pilot for the projects at Campbell Island and Rat Island, in the Aleutian chain of the north Pacific.”

The second and third stages in 2013 and 2014 will involve dropping as much as 300 tons of poison from the air onto every part of the island where rats might live. It is a huge operation, carried out during the stormy southern autumn when the rats are hungry and the risks of poisoning native wildlife are less than in the spring and summer months. “Ideally we’d do in winter but the weather makes that too risky,” Martin says.

The ecological payback will be priceless. But Martin says, “The full benefits will take decades to arrive, because some of these birds are slow to hatch.”

小题1:According to the passage, how did the rats appear on the sub-Antarctic island of South Georgia ?

A．They were attracted there by wildlife.

B．They escaped there from Campbell Island.

C．They were introduced there by sailors accidently.

D．They were brought in by people deliberately.小题2:Which of the following is True about Peter Garden ?

A．He is in charge of the campaign on the sub-Antarctic island.

B．He will be the only pilot for the project on the sub-Antarctic island.

C．He will benefit a lot from the campaign on the sub-Antarctic island.

D．He made great contributions to the project at Campbell Island and Rat Island.小题3:The operation of ridding South Georgia of rats is to carried out in autumn because _________.

A．the war against Campbell Island rats failed in all seasons except autumn.

B．only then do the New Zealanders to help the operation have the spare time.

C．rats then need more food and the operation does less harm to native wildlife.

D．the poison kills rats more effectively than it does in any other season.小题4:What can we infer from the passage?.

A．The campaign of killing rats will benefit the native wildlife in a short time.

B．Rats aren’t the only species to be blamed for the disappearance of wildlife.

C．The first stage of killing rats on the sub-Antarctic island didn’t make great achievements.

D．The campaign in South Georgia will fully follow in the footsteps of that on Campbell Island.

下列关于控件类的说法中，错误的是( )。

A．控件是一个可以以图形化的方式显示的对象

B．控件可以与用户进行交互

C．控件通常被放置在一个容器里

D．控件是不可复制的

（）是电流的若效应、化学效应、光效应或机械效应对人体造成的伤害。

A、电击

B、电伤

C、触电

D、雷电

混合牙列期，随着颌骨的增大以及乳磨牙与前磨牙替换的完成，上述哪项错畸形可以得到自行调整（）

A.上颌左右中切牙间隙

B.前牙反

C.前牙区轻度拥挤

D.前牙深覆

E.前牙开

如图：在一个容积固定的反应器中，有一可左右滑动的密封隔板，两侧分别进行如图所示的可逆反应。各物质的起始加入量如下：A、B和C均为4.0 mol，D为6.5 mol，F为2.0 mol，设E为x mol。当x在一定范围内变化时，均可以通过调节反应器的温度，使两侧反应都达到平衡，并且隔板恰好处于正中位置。请填写以下空白：

若x=4.5，则右侧反应在起始时向____________（填“正反应”或“逆反应”）方向进行。欲使起始反应维持向该方向进行，则x的最大取值应小于______________。

（2）若x分别为4.5和5.0，则在这两种情况下，当反应达平衡时，A的物质的量_________（填“相等”“不相等”或“不能确定”）。其理由是_______________。