同学们几乎每天都在解题,把题目做完了, 往往就结束了,但有时只知其一不知其二,很难有更大的收获.如果在做完之后,再想一想,认真探究一下,说不定有意想不到的收获,不仅能增加一些知识,而且还培养了能力.现举几例说明. The students are solving problems almost every day. It is often over when they finish the topic. However, sometimes knowing only one of them will make it harder for them to achieve even greater gains. If they are done, think again and seriously explore. In a moment, perhaps unexpected gains can not only increase some knowledge, but also cultivate the ability. Here are some examples.