H2S的毒性较一氧化碳大（）倍，几乎与氰化氢具有同样剧毒。A、两倍B、三倍C、四倍D、五倍
H2S的毒性较一氧化碳大（）倍，几乎与氰化氢具有同样剧毒。
- A、两倍
- B、三倍
- C、四倍
- D、五倍
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