题目

I know only a little about this matter; you may ask ____ knows better than I. A. whoever    B. whomever    C. anyone    D. the one   答案：A直饮水机中水处理的过程如图所示，步骤①对应的作用是( )A. 吸附杂质 B. 过滤 C. 杀菌消毒 D. 蒸馏