A:Good morning.
B:Good afternoon.
— ______ did you visit the Great Wall? ( )— Last Sunday.
小华经常嘲笑面部长胎记的小亮,还给他取绰号“青面兽”。小华的行为侵犯了小亮同学的( )
请根据图所示楼房顶上的旗帜和两船上旗帜的飘扬情况,判断出甲、乙两船的运动情况( )