题目

工厂里经常使用静电除尘技术，用一块带电的金属板，把浮尘吸附在金属板上，静电除尘的原理是 。毛皮与橡胶棒摩擦后，用毛皮靠近轻小球，轻小球被排斥，则该轻小球带 电。 答案：【1】带电体能够吸引轻小物体【2】正 We have finished the most of our work so far, and the rest ________ on time． [　　] A．has been finished B．has finished C．will be finished D．will finish