1992年，生态足迹概念是由加拿大英属哥伦比亚大学Rees教授和（ ）共同提出。 A: David B: Kals C: Mathis Wackernagel D: Sebastain
1992年，生态足迹概念是由加拿大英属哥伦比亚大学Rees教授和（ ）共同提出。 A: David B: Kals C: Mathis Wackernagel D: Sebastain
The music millionaire Johnny Mathis doesn't think ______. A: rock stars are worth what they have been paid B: rock stars have any value in their performance C: it makes any sense to worship rock stars D: rock stars are well trained
The music millionaire Johnny Mathis doesn't think ______. A: rock stars are worth what they have been paid B: rock stars have any value in their performance C: it makes any sense to worship rock stars D: rock stars are well trained
1