建立改良恶性风险指数 risk of malignancy index ; RMI
英格兰银行称市场对于风险的良性态度也许只反映出一个更加可靠的金融世界，但它同样可能表示一种心安理得。
The bank says the market's benign attitude to risk may simply reflect a more secure financial world. But it might also indicate complacency.
吃良性油脂来燃烧脂肪。鸡蛋、胡桃和菜籽油都有利于减肥，还能帮助降低得心脏病的风险。
Eat 'good' fats to burn fat. Eggs, walnuts and rapeseed oil are all good for this, and also help cut the risk of heart disease.
美国一项新的研究显示叶酸补充剂并不减低良性结肠肿瘤风险甚至可能增加患高分级肿瘤的风险。
A new US study suggests that folic acid supplementation does not reduce the risk of benign colorectal tumours and may even increase the risk of higher grade tumours.
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