單項(xiàng)選擇題

關(guān)于環(huán)境中汞的毒性說(shuō)法正確者為()

A. 無(wú)機(jī)汞〉單質(zhì)汞〉有機(jī)汞
B. 有機(jī)汞>單質(zhì)汞>無(wú)機(jī)汞
C. 單質(zhì)汞〉無(wú)機(jī)汞〉有機(jī)汞
D. 無(wú)機(jī)汞>有機(jī)汞>單質(zhì)汞

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