原材料引用（Material）:
22% Survived with good brain ability. Only 10% of the victims treated with traditional cpr survived with good brain ability. The American heart association changed its guidelines for cpr chest presses in two thousand five.
信息和事实（Facts）：
感受与评价（Comments）：
treated 、 traditional 连读的时候总是卡在这两个单词上。
统计累计的练习小时数（Hours）：（这里单指整句练习时间。单个发音是随时随地练的，不方便计时。）
0.5h/10.5h
