单选题1.[2005.10]_____plastics,the washing machines is light in weight. ofng ofg made ofng made of正确答案:A答案解析:本题考查悬垂结构。逗号之前部分的逻辑主语是主句的主语,它们之间是被动的关系,即the washing machine is made of plastics。所以用过去分词形式(过去分词表示被动)。