2020 Shanghai Question 21 Free-response Differentiating 2020_上海 Paper 21.实验使用的餐具、筷子及取样工具需经过 处理,接种方法是 Answer key高压(蒸汽)灭菌,稀释涂布平板法 ☆ SaveCan't do it, show the explanation查看原卷 →