plant爆炸后碎片 问下:这个就是那个GWD的 硫磺 的原题吧?版本 690 V31 一道bf题,研究某个plant爆炸后碎片的size, 这个p爆炸在一个范围内,如果碎片太大,就会溢出范围外。普遍认为,p爆炸会产生b物质。科学研究发现,这个范围外没有b,得出结论:没有大到溢出范围。 碰见很多很多填空题。。。
是不是就是这个啊: Astronomer: Observations of the Shoemaker-Levi comet on its collision course with Jupiter showed that the comet broke into fragments before entering Jupiter’s atmosphere in 1994, but they did not show how big those fragments were. Nevertheless, some indication of their size can be inferred from spectrographic analyses of Jupiter’s outer atmosphere. After the fragments’ entry, these analyses revealed unprecedented traces of sulfur. The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter’s outer atmosphere does contain sulfur. Since sulfur would have seeped into the outer atmosphere if comet fragments had penetrated this cloud layer, it is likely that some of the fragments were at least large enough to have passed through Jupiter’s outer atmosphere without being burned up. In the astronomer’s argument, the two portions in boldface play which of the following roles? A. The first is a claim that the astronomer seeks to show is true; the second acknowledges a consideration that weighs against the truth of that claim. B. The first is a claim that the astronomer seeks to show is true; the second provides evidence in support of the truth of that claim. C. The first and the second are each considerations advanced in support of the conclusion of the argument. D. The first provides evidence in support of the conclusion of the argument; the second is that conclusion. E. The first is a circumstance for which the astronomer seeks to provide an explanation; the second acknowledges a consideration that weighs against the explanation provided by the astronomer.
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