良好的开头常是成功的一半,说的就是开头的重要,其关键就是要找准思维起点.许多时候在解题一开始因未找准思维起点,从而不是出错,就是烦琐.特别是在考试的时候,开弓没有回头箭,这倒不是不能回头,而是没有回头的时间,如果我们能在解题一开始就找准思维起点,再加上科学思维和合理 Good beginning is often half the success, that is the beginning of the important, the key is to identify the starting point of thinking.Many times in the beginning of the problem can not find a starting point for thinking, so not wrong, is cumbersome.Especially in the examination , There is no turning back, this is not not back, but there is no time back, if we can identify the beginning of the problem-solving thinking, together with scientific thinking and reasonable