2222.2222-2222.2221=多少?

2222.2222-2222.2221=多少? =? = = = = =? = =? ===== ...............................快一点================= 米娜桑帮我想个作文题目吧,内容是关于孝的=============================================新颖一点的！新颖！============================================= == =.= = = = = == =-= - - -.-