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For the market, After all, the cultivation of children's thinking ability is still a new field in the education market. Although online children's English has cultivated a market for online learning, making many parents begin to receive online education, the development of the track still needs a process of cultivating the market because parents' awareness of thinking ability cultivation and online learning of thinking ability is not high enough. At present, most of the children's thinking ability line work class organizations still focus on word-of-mouth communication, WeChat circle of friends sharing and customer group fission in terms of marketing and promotion, and have not yet invested in large-scale marketing.202. X.X.1581941年，侵华日军向抗日根据地发起了疯狂的“扫荡”和“清乡”，同时，蒋介石制造了震惊中外的皖南事变，掀起了第二次“反共”高潮。中国人民的抗日战争进入了最困难的时期……Advantages: Solves the problem of thread insecurity.(4) Electronic time relay is also called electronic time relay, which uses delay circuit to delay. This relay has high precision and small volume.1. Notwithstanding the provisions of Sections I and II of Chapter II, any ship overtaking any other ship shall give way to the overtaking ship.比卫所兵士开支还要多一些，宁绍台总也有个限额，太多了胡巡抚也不会应允。