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2. In the above example, a set of state objects are created for each Context object. In fact, these state objects can be shared, and each Context object can share one state object. This is also one of the application scenarios of the meta-sharing modeHowever, if you use factory mode, you only need to modify the factory code. If other places refer to factories, you can modify only one place and other codes will not move, which is decoupling.讲述了1945国共内战爆发。8月中旬，国民党军第2战区司令长官司阎锡山，以第8集团军副总司令兼第19军军长史泽波率第19军等部1.7万人，企图侵占整个晋东南地区。晋冀鲁豫军区司令员刘伯承、政治委员邓小平集中军区3个纵队及地方武装3.1万人，在5万民兵的配合下，发起了上党战役。经过近半个月的激战，刘邓大军全歼守敌，取得了国共战场上第一次真正意义上的大捷！Extras and flags are too familiar to repeat.陈太太也忙点头道：苞谷。1. Ships of 12m or more in length shall be equipped with a horn, and ships of 20m or more in length shall be equipped with a bell in addition to the horn. Ships with a length of 100m or more shall be equipped with a horn in addition to the horn and bell. The tone and sound of the gong must not be confused with that of the bell. The horn, bell and gong shall conform to the specifications set out in Appendix 3 to these Rules. The bell, gong or both can be replaced by other equipment with the same sound characteristics as their respective, but it is required to manually sound the specified signals at all times.