I get up at 6: 50 every morning. Then I put on my clothes and shoes. And I eat my breakfast at 7: 20. I have milk, apple and bread for my breakfast. I go to school by bus. I arrive at school at 8: 00. Then I have my lesson at 8: 20. I go home at 5: 30 after school.

社会生活的发展,财产纠纷越来越多,“打官司”不仅成为解决财产纠纷的有效途径,而且被很多人作为第一甚至是唯一的选择。关于诉讼,下列说法中正确的是(　　)

①分为刑事诉讼、民事诉讼和行政诉讼三种

②当事人一旦起诉就意味着诉讼的成立

③法庭辩论是诉讼过程开庭审理中的核心

④诉讼活动中最重要的一个环节是开庭审理