题目

I decided to write about Chaplin, one of ______ films I had seen several years before.     A. whose          B. whom              C. that              D. which   答案：A10．小明同学在厨房中进行的活动，不属于化学变化的是（　　）A．用柠檬水制成冰块B．用食醋除去暖水瓶中的水垢C．和面时加入纯碱以除去面团里的酸味D．切过果蔬的菜刀未经处理而生锈