Rick and Mary are from America．Now they are working in Tianjin．They can speak a little Chinese．Every morning they get up very early．Then they go to work by car.·They are very busy．They have lunch at the factory．①After lunch they work again．They finish their work very late．  In the evening they take Chinese lessons(上汉语课)．They want to talk with Chinese people．They often say，“Chinese people are very friendly(友好的)．”②They like to stay in China and they like to work with Chinese people．

根据短文内容，完成下列题目。

网络谣言要么丑化社会，要么挟私报复，要么宣泄“阴暗心理”，其危害不啻于毒品。因此，铲除网络谣言这个社会毒瘤，不让网络沦为道德和法律盲区，离不开网民的自律，更离不开网络的规范和法律的制约。粉碎网络谣言说明（   ）

①社会生活是一个按照制度和规则来管理、运行的系统 

②制度的正义性在于它保障领导的利益 

③制定公平合理的制度规则，有利于建立一个人民共同幸福的社会 

④有了合理的制度规则，社会合作就能顺利进行