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"Is-A" refers to the "one" of one class and belongs to another class, while "Has-A" is different, which indicates that a certain role has a certain responsibility. A common reason for the wrong use of inheritance instead of aggregation is to mistakenly treat "Has-A" as "Is-A". For example:2. The three bars are Senior First Officer;The first thing to do is to develop and test the event recovery process to ensure that appropriate responses are made when caught off guard. This includes, but is not limited to, having the necessary controls to delay or stop processing and knowing which to call when debugging the classifier.在《JUST ADD MAGIC》的衍生剧《JUST ADD MAGIC》中，我们跟随《MAGIC cookbook》来到海湾城，迎来了三个新的保护人:继兄妹Zoe和Leo，以及他们楼上的邻居Ish。这三个人都为餐桌带来了一种独特的技能，因为这本食谱揭开了一个世纪以来的秘密，他们在城市的街道上进行了一场历史冒险，为了找到一个秘密食谱。在《JUST ADD MAGIC》的衍生剧《JUST ADD MAGIC》中，我们跟随《MAGIC cookbook》来到Bay City，看到了三个新的保护人:继兄妹Zoe和Leo，以及他们楼下的邻居Ish。这三个人都为餐桌带来了一种独特的技能，因为这本食谱揭开了一个世纪以来的秘密，他们在城市的街道上进行了一场历史冒险，为了找到一个秘密食谱。将于3月31日通过NAVER SERIES ON等VOD平台首次公开。漂亮女生邢露，一个没落贵族的后代，只能像一个普通女孩一样飘泊。情动、邂逅、初恋、失恋，邢露有着任何女生成长的苦恼、辛酸、快乐与伤感，但在那间温馨而普通的咖啡店里，结识穷困潦倒的年轻画家徐承勋，改变了她的一切，也让她生命的激情重燃熊熊火焰，一 段甜美而浪漫的爱情之旅在脚下 徐徐延伸，然而这段如痴如醉的爱情却隐藏着惊天的秘密：天才画家徐承勋究竟来自哪里？他为何乐观而执著地拥抱贫穷？邢露与他的相识究竟，是无意邂逅还是精心安排？他们那刻骨铭心的爱情是否能白头偕老？她最后为何会令人心碎地客死他乡。For example, in the semiconductor industry, Li Qiang has on many occasions asked Shanghai authorities to attach importance to the development of integrated circuits and strive to make new breakthroughs as soon as possible on the basis of the existing ones. "The more areas that reflect the country's competitiveness, the more Shanghai will take the lead in planning and focusing on tackling tough problems."