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试一试·猜一猜·证一证钱军先（江苏省射阳县中学２２４３００）著名科学家牛顿说过：“没有大胆的猜想，就做不出伟大的发现．”通过试验引发猜想，再对猜想的结果加以论证，这不仅是科学发现和发明的一种重要方法，而且也是我们求解数学问题的一条有效途径．许多情形下...
Trying to try · guessing · Zheng Yizhen Qian Junxian (Jiangsu Province Sheyang County Middle School 224300) famous scientist Newton said: “Without bold speculation, we can’t make great discoveries.” Demonstrating the results of conjecture is not only an important method for scientific discovery and invention, but also an effective way to solve mathematical problems. In many cases...