【单选题】19世纪后期,()的考古学家利用石膏做出了庞贝遇难者模型。
【单选题】19世纪后期,利用石膏做出庞贝遇难者模型的是哪个国家的考古学家?()
【简答题】翻译句子: (1). It took me about two and a half hours to get there . n (2). We found it difficult to learn English. n (3). You must study hard, otherwise, you wouldn’t succeed. n (4). No matter what he sai...
【判断题】不溶物的去除分为过滤、离心和萃取三部分。 A √ B ×