自上而下选用框架具有质量高，框架完善容易，思考速度快等特点，它是先收敛再发散的过程。目的是找一个完整结构，然后围绕结构做“问题细化”。 Participate in Now Blocks continue to keep slipping down in Tetris and you may twist them into the appropriate place. Finally these blocks must refill an entire row to attain points! 二手资料由精通市场调研的专家负责收集。二手资料包括企业内部的及外部的有... https://forum.m5stack.com/user/godovietnam