[Real] = from 26S1 final practice / 24S1 paper; [Mock] = same style. 【真题】来自真卷截图，【模拟】按真题风格补。 Marking 评分: each multi-select lets you pick at most 2; +1 per correct option (max 2), no penalty for wrong, 3 picks = 0. Single = 2 if correct. 多选每题最多选 2 个，命中每个正确 +1（满分 2），选错不扣，选 3 个该题 0 分（已限制）；单选对得 2 分。 Short-answer 简答: click “Model answer / 参考答案”, or type and screenshot it to me for marking 填完截图发我批改.