-You only need to provide the evidences to prove your status since your last/latest entry to US. For example, if you visited China on August 1, 2018 and returned to US on August 30, 2018, then you only need to provide the evidence since August 30, 2018 until the date you file I-485.
按說我和我的家人應該都適用245(k), 其實以前這些簽證等等無關緊要啊。是都附上還是不附上好呢?請賜教!新手上路,先謝謝了!