摘要: 优质解答 + 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 eq... 阅读全文
posted @ 2016-12-08 16:18 Ayumie 阅读(440) 评论(0) 推荐(0) 编辑