For ____Chinese people, it is a tradition to get together with their families during the Spring Festival.
将弹簧测力计右端固定，左端与木块相连，木块放在上表面水平的小车上，弹簧测力计保持水平，现拉动小车沿水平面向左运动，稳定时弹簧测力计的示数如图所示．则木块所受摩擦力的方向是 ____ ；大小为____ N．
祸所伏”、“因地制宜，因材施教”
、“金无足赤，人无完人”所蕴含的哲学道理依次是
