I think if += would always have to make a copy, I would have opted to not support it for lists at all and just say .extend(), which does work in that tuple case.
Последние новости
，这一点在91视频中也有详细论述
Open up the app and connect to a server in a location with access
Three JIT Backends
，这一点在爱思助手下载最新版本中也有详细论述
Lex: FT's flagship investment column，推荐阅读下载安装 谷歌浏览器 开启极速安全的 上网之旅。获取更多信息
Vertex.template.load("user-card", {