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by adding formaldehyde to the mix.So you might remember formaldehyde.Really distinct odor,

I remember having to use vodka -- my own vodka -- to pickle itbecause we don't carry formaldehyde.We went and found these incredible clam beds

negatively charged electronsby adding formaldehyde to the mix.So you might remember formaldehyde.

enough wood to build 1,800 single family homes,and enough formaldehyde-laden embalming fluidto fill eight Olympic-size swimming pools.

to make it look alive.It's then pumped with toxic formaldehydeto slow decomposition --

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剑桥雅思阅读真题4-15,经济学人(The Economist)