单选题
These diseases, therefore, may have as much to do with our way of life and our high-fat diets as with______weight. And the associate risk of cancer in the digestive system may be more about a dietary problem—too much fat and lack of liver than a weight problem.
【正确答案】
B
【答案解析】解析：四个选项的意思分别是：excessive过多的，过分的；excess过度的，额外的；putrid腐烂的；impure不纯洁的，脏的。句意是，所以，这些疾病可能与我们的生活方式、高脂肪饮食习惯以及体重超标有关。所以正确答案是B选项，如：You’ll have to pay excess postal charges on this letter．(这封信你必须付超重邮资。)