【单选题】The rhetoric method (修辞方法) used in the sentence "Optimism doesn't need to be naive." is __________.
【单选题】把交流电转换为直流电的过程称为( ) 。
【单选题】The rhetoric method used in the sentence "Conversely, negative thoughts, attitudes and expectations feed on themselves ..." is ________.
【简答题】根据溶质原子所处的位置,固溶体可分为 、 。
【简答题】根据溶质原子在溶剂品晶格中所处的位置不同,固溶体可分为 、与 两种。