题目

My wood-shop teacher, Mr. August J. Bachmann, was the most influential teacher I ever had.I had gotten into   41   in his class: Another student had pushed me into a wood lathe (车床), and I became   42  and began to hit him. Mr. Bachmann stopped the   43  , but instead of sending me to the office, he sat me down and asked a simple question:“Penna, why areyou   44   your life? Why aren't you going to college?” I didn't know anything about   45   . No one had ever considered that a fatherless boy from the poorest neighborhood had a   46  . That day, instead 下列说法正确的是(　　)A. 合金、合成材料、合成橡胶等都是重要的有机合成材料B. 化纤和羊毛可以用燃烧法区别C. 用甲醛浸泡水产品以达到保鲜的目的D. “白色污染”是指白色塑料袋造成的污染