题目

阅读理解。Dieting to lose weight has become very popular in recent years. Peoplehave become more health conscious and try to take better care of their bodiesby eating more healthily and exercising more regularly to lose any unnecessaryfat that they may have. Not only are people being more careful about what they eat, theyare also concerned with how they eat and how their meals are prepared. Peopleare taking more time for each meal. Many avoid the so-calledplasticfast-food hamburgers and choose to eat a salad or a sandwich of more healthfulingredients in a quiet restaurant with a more comf下列生活用品所使用的主要材料，属于有机合成材料的是A. 纯棉毛巾 B. 尼龙丝袜 C. 真丝围巾 D. 纯羊毛衫