D组题 1、夸夸其谈(打一地名) (答案:海口) 2、氧气的发现者是谁? (答案:舍勒) 3 When do elephants have sixteen feet (答案: When there are four of them) 心备1、夸夸其谈 (打一地名) (答案：海口 ) D组题 2、氧气的发现者是谁？ (答案：舍勒) 3、When do elephants have sixteen feet? (答案：When there are four of them.)