摘要：10．我们青少年应该关心健康.珍爱生命.远离有毒物质.下列物质对人体无害的是··································································( ) A．霉变的大米.面包 B．带过滤嘴的名牌香烟 C．可卡因.摇头丸 D．进行无土栽培的蔬菜
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