24． Which of the following is TRUE?
- A When he talks or sings, Jay Chou can both speak clearly．
- B When he sings, Jay Chou can-t speak clearly． When he talks, he can't, either．
- C When he talks, Jay Chou can-t speak clearly． But when he sings, he can．
- D When he sings, Jay Chou can't speak clearly． But when he talks, he can．