题目

阅读理解Iman,the last Sumatran rhino(犀牛) inMalaysia, died in 2019 — bringing the endangered species one step closer toextinction. Now, Malaysian scientists are hoping to use tissues and cells fromIman and other dead rhinos to bring the population back. Beforethe three rhinos (the last survivors in Malaysia) died, we got their cells, andthe cells are still alive — which is why I'm quite confident, Dr. Lokmansaid. If we don't have any cells, or have just tissue that isn't livinganymore, we wouldn't be able to do anything. But now we have a living thingthat we can use. Thecells came f下列物质中，按单质、化合物、混合物顺序排列的是（　　） A、氧气、石灰石、过氧化氢B、天然气、生铁、煤气C、金刚石、磁铁矿、石油D、红磷、干冰、矿泉水