建设民主、文明、和谐、平等、安全的（）学校。

骨髓细胞检查以晚幼红细胞增生为主，细胞内铁、外铁明显减少或消失，见于（）

A.再生障碍性贫血

B.铁粒幼细胞性贫血

C.海洋性贫血

D.溶血性贫血

E.缺铁性贫血

Black Box

You never see them, but they're with you every time you fly. They record where you're going,how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to resist almost any disaster makes them seem like something out of a comic (漫画)  book.They're known as the black box.

When planes fall from the sky, as a Yemeni airliner did on its way to the Comoros Islands in the Indian Ocean on June 30, 2009, the black box is the best method for identifying what went wrong. So when a French submarine(潜水艇)  discovered its homing signal five days later, it marked a huge step toward determining the cause of the disaster in which 152 passengers were killed.

In 1958. Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first model for a black box, which became a requirement on all US commercial flights by 1960. Early models often failed to resist crashes, however, so in 1965 it was completely redesigned. That same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to be easier to see.

Modem airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help experts reconstruct the aircraft's final moments. The boxes can resist powerful force and temperatures up t0 2,OOOoF. They're also able to send out signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447 ,  which crashed near Brazil on June 1 , 2009 ,  are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.

小题1:What can we leam about the black box from the passage?

A．It helps an airplane function normally.

B．Its ability to avoid disasters is amazing.

C．It is necessary equipment on an airplane.

D．The idea for its design comes from a comic book.小题2:From the black box on the Yemeni airliner we can get information about _____.

A．the scene of the crash and the damage

B．data for analyzing the cause of the crash

C．the total number of passengers on board

D．homing signals sent by the pilot before the crash小题3:The Federal Aviation Authority required the black boxes be painted orange or yellow to

A．make them easily identified

B．meet the international standards

C．caution people to handle them with care

D．distinguish them from the color of the plane小题4:What do we know about the black boxes from Air France Flight 447?

A．They have stopped sending homing signals.

B．They were destroyed somewhere near Brazil.

C．There is an urgent need for them to be restructured.

D．There is still a good chance of their being recovered.

失血性休克的治疗主要是（）。

A.密切监测血压

B.保暖

C.留置导尿管

D.补充血容量，积极处理原发病

E.快速输全血

2010年10月14日，根据中美两国元首特别代表在第二次中美战略与经济对话下达成的共识，在中美科技合作联委会框架下召开的“中美创新对话”在北京成功举行。双方重申致力于建设二十一世纪积极合作全面的中美关系。美方决定将接受更多中国留学人员赴美学习，今后四年向中国派遣十万名留学人员。双方强调气候变化是时代的重大挑战之一，一致认为，向绿色经济、低碳经济转型十分关键。中国同时强调，一个稳定、合作、向上的中美关系不仅有利于两国，也有利于世界。我们不赞成有关所谓“两国集团”（所谓“两国集团”又称Ｇ2，就是中美两国结盟，共同主导世界事务，领导世界经济秩序。最早提出该构想的是美国彼得森国际经济研究所所长弗雷德·伯格斯登）的说法。

用政治常识有关知识说明我国为什么要与美国建立合作关系又反对所谓“两国集团”的说法？(10分)

龚自珍