JSON 格式填空题练习：中国首都、太阳、地球洲际等

{ "questions": [ { "question": "中国的首都是'北京'。", "answer": "北京" }, { "question": "太阳是一颗'恒星'。", "answer": "恒星" }, { "question": "地球上最大的洲是'亚洲'。", "answer": "亚洲" }, { "question": "世界上最高的山是'珠穆朗玛峰'。", "answer": "珠穆朗玛峰" }, { "question": "'红楼梦'是由'曹雪芹'所著。", "answer": "曹雪芹" } ] }