I don’t know why UFOs are never sighted
over large cities by hordes of people. But it is consistent with the idea that
there are no space vehicles from elsewhere in our skies. I suppose it is also
consistent with the ideas that space vehicles from elsewhere avoid large cities.
However, the primary argument against recent extraterrestrial visitation is the
absence of evidence. Take leprechauns. Suppose there are frequent reports of leprechauns. Because I myself am emotionally predisposed in favor of leprechauns, I would want to check the evidence especially carefully. Suppose I find that 500 picnickers independently saw a green blur in the forest. Terrific. But so what This is evidence only for a green blur. Maybe it was a fast hummingbird. Such cases are reliable but not particularly interesting. Now suppose that someone repo A. The author is not sure whether they are true or not. B. The author doubts if they are true. C. The author doesn’t think they are interesting. D. The author simply does not believe them. [单项选择]We don’t know why so many people in that region like to wear dresses of such()colors.
A. low B. humble C. mild D. dull [填空题]I don’t know why he is so absorbed in collecting stamps, _________________. (你不妨当面问问他好了).
[单项选择]W: I don’t know why we listen to George
M:() A. I don’ t know exactly why, either. B. I guess we are wrong this time. C. I know. But perhaps you don’ t know why. D. George, you know, is one of the hardest working students among us. 我来回答: 提交
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