Images from ground-based telescopes are invariably distorted by the Earths atmosphere. Orbiting space telescopes, however, operating above Earths atmosphere, should provide superbly detailed images. Therefore, ground-based telescopes will soon become obsolete for advanced astronomical research purposes.

Which of the following statements, if true, would cast the most doubt on the conclusion drawn above?
• AAn orbiting space telescope due to be launched this year is far behind schedule and over budget, whereas the largest ground-based telescope was both within budget and on schedule. 分析该选项
• BGround-based telescopes located on mountain summits are not subject to the kinds of atmospheric distortion which, at low altitudes, make stars appear to twinkle. 分析该选项
• CBy careful choice of observatory location, it is possible for large-aperture telescopes to avoid most of the kind of wind turbulence that can distort image quality. 分析该选项
• DWhen large-aperture telescopes are located at high altitudes near the equator, they permit the best Earth-based observations of the center of the Milky Way Galaxy, a prime target of astronomical research. 分析该选项
• EDetailed spectral analyses, upon which astronomers rely for determining the chemical composition and evolutionary history of stars, require telescopes with more light-gathering capacity than space telescopes can provide. 分析该选项

• 网友解析

### 题目讨论

• 优质讨论
• 最新讨论

• 所属科目:逻辑CR
• 题目来源1:OG18-文本逻辑-171
• 正确率: 0%
• 难度: