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3.3. 3 create event 2 (start event per minute)因为漏听了这一番话。大军渡过渭水和泾水，一路北上，逐渐由关中平原进入了黄土高原。2. It is not difficult to make preserved pork chafing dish. The most critical side dishes are the big leek roots, potatoes, tomatoes and celery listed by me. If you want to re-carve, please be sure to prepare these dishes. However, if it is not necessary to be exactly the same, it is not bad to make it with substitutes.Rogue and coquetry tears and smiles张槐点点头。? Generally speaking, the factory mode is suitable: whenever a large number of products need to be created and have a common interface, they can be created through the factory method mode. Of the above three modes, the first cannot create the object correctly if the incoming string is wrong, and the third does not need to instantiate the chemical factory class compared with the second, so in most cases, we will choose the third-static factory method mode. ?