燃烧必须在可燃物质、助燃物质和着火源三个条件同时具备且相互作业时才能发生（）
参考答案：对
The room was small and contained far too________.
A．much new furniture
B．much new furnitures
C．many new furniture
D．many new furnitures
许多神经纤维集结成束，外面包着结缔组织膜，就成为一条__________。
