题目: 催化裂化新鲜催化剂的物理性质分析有粒度,比表面积,孔体积,密度,磨损指数。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1025/a5483e6a1f838a328d36767cc4a5378e.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:填空题 从方框中选择合适的单词,然后用其正确形式填空。historic, category, feature, present, size1. This is a very _______ photo.2. The piano is a _______ of musical instruments.3. Do you know what the _______ of Tian’anmen Square is?4. The new mobile phone _______ its small size.5. They _______ him with a bunch of flowers. 查看答案