阅读下面这首诗。
                                                                                                                                       秋夜山居
                                                                                                                                       唐•施肩吾
                                                                                                                去雁声遥人语绝，谁家素机①织新雪。
                                                                                                                 秋山野客②醉醒时，百尺老松衔半月。
       【注释】①素机：织布机。②野客：离乡在外的游客。

一般来说，动物细胞体外培养需要满足以下条件
①无毒的环境 ②无菌的环境 ③合成培养基需加血浆 
④温度与动物体温相近  ⑤需要氧气 ⑥需要二氧化碳

某物质经分析，含有碳、氧两种元素，该物质（　　）