Which are Confucius beliefs? A: Benevolence B: Wickedness C: Love People D: Righteousness

The original meaning of "shrewd" is "evil" or "wickedness" while modern meaning is "clever", this belongs to ______ of word-meaning. A: degradation B: elevation C: extension D: narrowing

The purpose of this article is to______. A: ware us of the wickedness of napping B: explain the danger of sleepiness C: discuss the side effects of napping D: convince the reader of the necessity of napping