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Ежедневный вопрос по охране окружающей среды (28.12)

2016-12-28View Original

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Вопрос с одним правильным ответом: распространенные антипенообразователи в зависимости от состава делятся на силиконовые (смолистые), поверхностно-активные вещества, алканы и . А. Кислоты и щелочи Б. Минеральные масла В. Глины Г. Окислители Выбор: Б

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