[待解决]<br>0粉丝0精华2帖子<br>您好,精华帖至少要有15张图片,文字不少200个字!并且是原创内容,布局合理。<br>求,1.5手动变速箱和自动变速箱产地牌子?哪个好用?<br>太平洋汽车网全新推出“太平洋车友会”;来太平洋车友会,结识志同道合的车友了解详情>><br>Cycle Prohibited<br>Description: Could not process your request for the document because it would cause an HTTP proxy cycle. Please check the URL and your browser's proxy settings.<br>0粉丝3精华36783帖子<br>性价比还可以,最重要是自己喜欢<br>0粉丝0精华24109帖子<br>日产的三大件是日产提供,变速箱是爱信变速箱,产地当然是国内生产的呀!<br>只可添加一张图片,多张图片请选高级模式<br>温馨提示:回复超10字可获1金币,有独特见解超30字可获3金币,灌水用户将扣除金币并锁号处理。希望广大车友共同维护论坛的友好回复氛围。<br>您需要登录后才可以发帖<br>下载官方APP 实时查看消息回复<br>Cycle Prohibited<br>Description: Could not process your request for the document because it would cause an HTTP proxy cycle. Please check the URL and your browser's proxy settings.<br>Cycle Prohibited<br>Description: Could not process your request for the document because it would cause an HTTP proxy cycle. Please check the URL and your browser's proxy settings.<br>Cycle Prohibited<br>Description: Could not process your request for the document becaus
什么是复数我们小学的时候先学用手指算的,叫“自然数”,后来学了分数和小数,统称“正数”,初中又学了“负数”,这时候,我们学了“有理数”然后,到了初二,又学了开方,于是,就有了“无理数”,跟“有理数”合称“实数”好啦!到了高中,我们将会学“虚数”,跟“实数”合称“复数”,到这时候,我们学的“数字”算告一个段落了!!比如,我们初中知道,-1是不能开平方根的!高中学了“虚数”之后,我们定义:-1的平方根是±i作用嘛,就跟以前学的那些“正数”--》“有理数”一样!是为了完善数学的体系!为了计算或记录一些式子!。