真理和谬误在一定条件下可以转化的论断是______。
A. 辩证唯物主义的观点
B. 相对主义的观点
C. 诡辩论的观点
D. 经验论的观点
"White elephant" is an idiom ______ in nature.
______ is the process of forming new words by joining the initial letters of names of social and political organizations or special noun phrases and technical terms.