This problem is in Contest(s) below:
Contest 1136:省编初中信息技术2020版.八年级上册.第二单元.第六课
Contest 1164:银湖实验805(Part2-四到七课)
Contest 1166:银湖实验807(Part2-四到七课)
Contest 1163:银湖实验810(Part2-四到七课)