14. 既有氧化性，又有还原性，但以氧化性为主的二元弱酸是 A、H2O2 B、H2S C、H2SO3 D、H2S2O3 - 查题网

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14. 既有氧化性，又有还原性，但以氧化性为主的二元弱酸是
   A、H2O2
   B、H2S
   C、H2SO3
   D、H2S2O3

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