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疯狂科学家之网www.madsci.org你有问题吗?这里有答案。“疯狂科学家之网”有来自全世界的500多名科学家志愿者，他们将回答有关的科学问题。但是你可能不是马上收到电子函件答案，因为它将要一星期或者更多时间才能到达。你可以查询网站上的问答档案，其中有成干上万个问题的
Mad Scientists Network www.madsci.org Do you have any questions? Here is the answer. Crazy Scientists Network has over 500 scientists volunteers from around the world who will answer relevant scientific questions. But you may not have received the e-mail immediately because it will take a week or more to arrive. You can check the quiz files on the site, among which there are hundreds of thousands of questions