知识贝壳
知识贝壳
所属栏目：英汉烟草科技
SyntheticsThe first introduction of a wholly non-tobacco supplement as a component of a tobacco blend occurred in West Germany in late 1974 with themarketing of two brands containing 20%～25% tobacco supplement. Inearly 1975,a tobacco supplement was also i ......（本文共 2559 字 ） [阅读本文] >>