老师一边讲课一边写字对吗

First, the number of top talents in the industry is relatively limited and there is a shortage of good teachers. Second, the good and bad products are intermingled, but ordinary consumers lack the ability to distinguish, leading to the expulsion of good ones from bad ones. Third, giants enter and crush start-up organizations with large resources...State mode refers to allowing an object to change its behavior when its internal state changes. The object seems to have modified its class. Divide this sentence into two parts by commas. The first part means to encapsulate the state into a separate class and delegate the request to the current state object. When the internal state of the object changes, different behavior changes will be brought about. The second part is from the customer's point of view, the object used has completely different behaviors in different states. The object seems to be instantiated from different classes, but in fact this is the effect of using delegates.1. A copy of the three-certificate business license or a copy of the business license + a copy of the tax registration certificate + an organization code certificate (one copy and stamped with the official seal)Birthday date is a holiday, such as Labor Day (0501), Children's Day (0601), National Day (1001) and other holiday dates, the price will also be increased accordingly.《二龙湖爱情故事》是一部通过小人物张立东的成长轨迹来展现当代农村青年的向上精神和美好爱情的生活画卷，从而传递给观众更多正能量的故事前无去路，后有追兵，走投无路之下，他们仓惶遁入了莽莽无边、与世隔绝的热带丛林——泰缅寮交界神秘的金三角。从此，这支溃败之兵——国民党残军93师，离乡去国，开始了他们悲怀惨烈、无可奈何的另一种命运。 历经多种尝试，付出惨痛的代价，最终是不能逆转历史的滔滔洪流，当政治幻想破灭，政治使命结束后，在一片远离文明的热带丛林，在一种完全孤立的处境中，如何生存下去成了这批打过二战、打过中共，打过泰缅联军的丛林游……萧何与张良的本意是让他留在关中负责训练新兵。