比如数学，之前都是分模块的复习和刷题，是一个个孤立的知识点，如果要考高分，需要在这个阶段把零散的知识点串起来，先串成线，在拼成面。Persistent worrying or anxiety about many regions which have been away from proportion into the effect of the functionsAnxiety resulting from an sickness.