A．<br /><img src="https://imgtest.ppkao.com/ExamPaperRes/2012/11/26/aa8c60f30d5d4962a5daec5e3ed57702/ff78318b-25ff-4cf4-a9b6-b2a9ad9687b2.jpg">
B．<br /><img src="https://imgtest.ppkao.com/ExamPaperRes/2012/11/26/aa8c60f30d5d4962a5daec5e3ed57702/ff5d0447-3233-4794-a509-e66b3364871f.jpg">
C．<br /><img src="https://imgtest.ppkao.com/ExamPaperRes/2012/11/26/aa8c60f30d5d4962a5daec5e3ed57702/a42337ea-34b2-49e4-a916-753a3953aba9.jpg">