摘要:
A: Lydia 和 undefined B: Lydia 和 ReferenceError C: ReferenceError 和 21 D: undefined 和 ReferenceError A: Lydia 和 undefined B: Lydia 和 ReferenceError C: 阅读全文
摘要:
A: 20 and 62.83185307179586 B: 20 and NaN C: 20 and 63 D: NaN and 63 A: 20 and 62.83185307179586 B: 20 and NaN C: 20 and 63 D: NaN and 63 答案: B 请注意,di 阅读全文