射线灭菌法最常用的是() ["紫外线","阴极射线","X射线","γ射线"]
根据《汽车加油加气站设计与施工规范》GB50156-2012中的要求,三级站LNG储罐距离以下设备不应小于4米的是()。 ["CNG储气设施","CNG放散管管口","LNG卸车点","CNG加气机","LNG加气机"]
质外体运输 apoplast transport
腌腊制品
班主任专业化的主要内容是() ["专业道德","专业追求","专业能力","专业认知"]
植物体内养分运输 nutrients transport in plant