发布网友 发布时间:2022-04-25 12:33
共4个回答
热心网友 时间:2024-10-29 18:13
竖线确实就是个符号,其含义是热心网友 时间:2024-10-29 18:11
Although we live in a world with just seven continents,within those continents are countries whose residents speak hundreds of different languages.Many countries today,due to globalization,business,trade,technology,and travel,have learned to embrace populations that are both multicultural and multilingual.Being comfortable doing business and simply getting along with people of other backgrounds is just one of many advantages of learning a foreign language.热心网友 时间:2024-10-29 18:11
前面是集合的代表元素,后面是其条件热心网友 时间:2024-10-29 18:09
竖线就是个符号啊,为了把X或Y和它们所具有的属性,也就是他们所对应的函数式或者不等式区别开,为了表达的意思更明确,不让你看花眼。它不是个运算符号。热心网友 时间:2024-10-29 18:07
竖线确实就是个符号,其含义是热心网友 时间:2024-10-29 18:13
竖线就是个符号啊,为了把X或Y和它们所具有的属性,也就是他们所对应的函数式或者不等式区别开,为了表达的意思更明确,不让你看花眼。它不是个运算符号。热心网友 时间:2024-10-29 18:14
前面是集合的代表元素,后面是其条件热心网友 时间:2024-10-29 18:06
Although we live in a world with just seven continents,within those continents are countries whose residents speak hundreds of different languages.Many countries today,due to globalization,business,trade,technology,and travel,have learned to embrace populations that are both multicultural and multilingual.Being comfortable doing business and simply getting along with people of other backgrounds is just one of many advantages of learning a foreign language.