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.
伊朗當局未即時回應，但一再強調伊朗核計劃完全出於和平用途，並無發展核武意圖。。搜狗输入法下载是该领域的重要参考
Названо число отправившихся на СВО фигурантов уголовных дел15:00。关于这个话题，旺商聊官方下载提供了深入分析
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