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[
{
"pid": 1,
"question":"这是什么类型的水工挡土墙? ",
"image":"images/1.jpg",
"choices": ["重力式","衡重式","悬臂式","板桩式","锚杆式","加筋式","扶壁式"],
"unit":"null",
"precision":"null",
"answer":"重力式",
"question_type": "mlti_choice",
"answer_type": "text"
},
{
"pid": 2,
"question":"水工挡土墙的顶标高是多少？",
"image":"images/2.jpg",
"choices": "null",
"unit": "m",
"precision": "2",
"answer": "302.70",
"question_type":"free_form",
"answer_type":"float"
},
{
"pid": 3,
"question":"水工挡土墙的底标高是多少？",
"image":"images/2.jpg",
"choices": "null",
"unit": "m",
"precision": "2",
"answer": "296.00",
"question_type":"free_form",
"answer_type":"float"
}
] |