| | | | | 7 14 | | | | | | | | | | | | 21 | | | | | | | | | | | | | | 10 — 20 | | | | 8 10 | | | | | | | | | | | | | | | 32 | | | | | | | | | | 7 14 | | | | | | | | | | 1 1 6 | 3 1 | 6 | | | ； | 20 | 30 | 40 30 | 30 | | | | 6 | | | | | 3 1 | | | | | | | 3 1 6 | | |