满天星现象(stary sky)

A . T细胞性淋巴瘤 B . B细胞性淋巴瘤 C . 组织细胞性淋巴瘤 D . 霍奇金淋巴瘤 E . Burkitt淋巴瘤

A . A．天气不同 B . B．气候不同 C . C．地球自转 D . D．地球公转

A . A．线状花型插法 B . B．点状花型插法 C . C．面状花型插法 D . D．立体花型插法

A . 默多克 B . 普利策 C . 李普曼 D . 杰弗逊

A . A．汤姆森集团 B . B．默多克集团 C . C．英国广播公司 D . D．独立电视委员会

A . T细胞性淋巴瘤 B . 霍奇金淋巴瘤 C . B细胞性淋巴瘤 D . 组织细胞性淋巴瘤 E . Burkitt淋巴瘤

A . 正确 B . 错误

A . 霍奇金淋巴瘤 B . 非洲淋巴瘤 C . 朗格汉斯细胞病 D . 浆细胞肉瘤 E . 坏死性肉芽肿

A . 菲利普·哈尔斯曼 B . 鲁恩·伯恩哈德 C . 鹤田照夫 D . 路易斯·格林菲尔德

A . ≤14 B . ≤24 C . ≤25 D . ≤15

A . A．地球自西向东公转 B . B．地球自东向西公转 C . C．地球自西向东自转 D . D．地球自东向西自转

A little airplane has given new meaning to the term "going hyper. " The Hyper-X recently broke the record for air-breathing jet planes when it traveled at a hypersonic speed of seven times the speed of sound. That's about 5,000 miles per hour. At this speed, you'd get around the world -- flying along the equator (赤道) -- in less than 5 hours. The Hyper-X is an unmanned,experimental aircraft just 12 feet long. It achieves hypersonic (超音速的) speed using a special sort of engine known as a scramjet. It may sound like something from a comic book,but engineers have been experimenting with scramjets since the 1960s. For an engine to burn fuel and produce energy, it needs oxygen. A jet engine, like those on passenger airplanes, gets oxygen from the air. A rocket engine typically goes faster but has to carry its own supply of oxygen. A scramjet (紧急刹车) engine goes as fast as a rocket, but it doesn't have to carry its own oxygen supply. A scramjet's special design allows it to obtain oxygen from the air that flows through the engine. And it does so without letting the fast-moving air put out the combustion (燃烧) flames. However, a scramjet engine works properly only at speeds greater than five times the speed of sound. A booster rocket carried the Hyper-X to an altitude of about 100,000 feet for its test flight. The aircraft's record-beating flight lasted just 11 seconds. Although the little plane's self-powered flight lasted only 11 seconds, that brief journey on March 27 makes a major milestone on the way to a new breed of very fast airplanes, comments Werner J. A. Dahm of the University of Michigan in Ann Arbor. In the future, engineers predict, airplanes equipped with scramjet engines could transport cargo quickly and cheaply to the brink of space. Such hypersonic jets could potentially carry passengers anywhere in the world in just a few hours. Out of the three experimental Hyper-X aircrafts built for NASA, only one is now left. The agency has plans for another 11-second hypersonic flight, this time at 10 times the speed of the sound. The Hyper-X broke the record because A．it was the first air-breathing jet plane. B．it flew along the equator. C．it flew at speeds smaller than five times the speed of sound. D．it traveled at a supersonic speed.

“运输工具名称”栏应填()。 A．YS-001 B．SKY TREASURE/V013 C．SKY TREASURE D．Gl-0701-R-1

A:暮色color of twilight; B:曙色color of dawn; C:海天霞color of rosy clouds between sea and sky; D:云母白mica white

此题为判断题(对，错)。

此题为判断题(对，错)。