2012 7 10 A | B | C | A | 26 | | A | | A | | A | A | 26 A | A | A | | | | | | A A | | | 1. | ⑴ A | A | A 20% | | | ⑵ | A | A C | A | A | 5 | | | 24 8 | | 2. | 2012 7 10 | 2012 2 24 | | | | A A | A A | A A | | | | | | | | | | | | | | | | | | | | | | |