var json1=({
  "LO": {
    "VOText": {
      "VO": [
        {
          "@id": "sound1",
          "@mp3ref": "blood_therole_01.mp3",
          "#text": "你是否偶然伤到过自己？"
        },
        {
          "@id": "sound2",
          "@mp3ref": "blood_therole_02.mp3",
          "#text": "你知道血液在你身体里具体起到什么作用吗？"
        },
        {
          "@id": "sound3",
          "@mp3ref": "blood_therole_03.mp3",
          "#text": "你的血液作为运输系统在全身运输氧气、二氧化碳、食物和废物。"
        },
        {
          "@id": "sound4",
          "@mp3ref": "blood_therole_04.mp3",
          "#text": "心脏位于循环系统的中心，将血液泵至全身。"
        }
      ]
    },
    "Labels": {
      "Label": [
        {
          "@id": "slide1_qmark",
          "#text": "？"
        },
        {
          "@id": "slide1_glucose",
          "#text": "葡萄糖"
        },
        {
          "@id": "slide1_carDiox",
          "#text": "二氧化碳"
        },
        {
          "@id": "slide1_oxy",
          "#text": "氧气"
        },
        {
          "@id": "slide1_urea",
          "#text": "尿素"
        }
      ]
    }
  }
});
