加拿大生活信息 标点符号怎么读？ 在加拿大 + plus 加号；正号 - minus 减号；负号± plus or minus 正负号× is multiplied by 乘号÷ is divided by 除号= is equal to 等于号≠ is not equal to 不等于号≡ is equivalent to 全等于号≌ is equal to or approximately...华人论坛 日期：2020-11-18