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发表于:2018-01-12
Thegentleartofsubstitutionandimprovisation.Aminescanengageinnucleophilesubstitutionreactionwithalky.Thegreatlawofsubstitutionistheanswertofear.Theythentraverseasubstituti...
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发表于:2022-04-16
electrophilicsubstitutionnucleophile-assistedunimolecularelectrophilicsubstitution...
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发表于:2024-01-02
1、Incryptography,anearlyexampleofmonoalphabetic,orsubstitutioncipherusedintheGallicwars.2、Thefirstwasasubstitutioncipherthatconvertedplaintextcharacterstomidfixsyllable...