1.Using computer techniques, researchers analyze layers of paint that lie buried beneath the surface layers of old paintings. they claim, for example, that additional mountainous scenery once appeared in Leonardo da Vinci's Mona Lisa, which was later painted over. Skeptics reply to these claims, howevere, that X-ray examinations of the Mona Lisa do not show hidden mountains. whichi of the follwing, if ture, would tend most to weaken the farce of the skeptics' objections? A. there is no written or anecdotal record that Leonardo Da Vinci ever painted over major areas of his Mona Lisa. B. painters of da Vinci's time eommonly created images of mountaionous scenery in the backgrounds of portraits like the Mona Lisa. C. No one knows for certain what parts of the Mona Lisa may have been painted by da Vinci's assistants rather than by da Vinci himself. D Infrared photograpgy of the Mona Lisa has revealed no trace of hidden mountainous scenery. E.Analysis relying on X-ray only has the capacity to detect lead-based white pigments in layers of paint beneath a paininting's surface layers. 答案E 不是很理解这个题目，看不太明白什么意思，希望大家帮忙解答一下。 2 Most television viewers estimeate how frequently a particular type of accident or crime occurs by how extensively it it discussed on television news shows. Televison news shows report more on stories that include dramatic pictures such as fires and motor vehicle accidents then they do no more common stories that have little visual drama such as bookkeeping fraud. if the statement above are true, it can be properly concluded that which of the following is also true? a. the tiem television news reporters spend researching news stories is directly related to the number of viewers who will be affected by events like thoses in the news stories. b. it is easier for crimes such as bookeeping fraud to go unprosecuted than it si for crimes such as arson. c. the number of fires and motor vehicle accidents greatly increases after each television news show that includes dramatic pictures of a fire or motor vehicle accident. d. viewers of television news shows tend to overestimate the number of fires and motor vehicle accidents that occure relative to the number of crimes of bookkeeping fraud. e. the usual selection of news stories for television news shows is determined by the number of news reporters available for assignment. 答案是D，，虽然别的看着都不对，不理为什么是这个选项，是什么意思和逻辑呢？ 另外，想请教一下在做逻辑提的时候，应该是本着什么原则呢？经常选错，是不是因为对段落的理解不到位？总是觉得大概是明白了，但是就是选不出来，选不对。在做逻辑的时候应该是先读问题还是读文章呢？ 谢谢~~ | 
