右图为测定空气中氧气含量的实验装置.下列有关说法正确的是 A.燃烧匙中的红磷越多水位上升越高b.燃烧匙中的红磷可用硫或木炭代替c.选用 Template




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tomski右图为测定空气中氧气含量的实验装置.下列有关说法正确的是 a.燃烧匙中的红磷越多水位上升越高b.燃烧匙中的红磷可用硫或木炭代替c.选用 coloring