蹤̾áԤ֮

46豸˰ļ˰ָ
AĿĸ۴Ͻ                  B˷ѱշڼ
C˷ڼ                            Dװ˸۴Ͻ
47ڱͶʹʱͨٶڣ֧á
A                 Bĩ
C                 D
48ҹ豸һֻǣ
Aװ˸۴ϽۣFOB        BۣCIF
CĿĵؽ                                    D½
49̽趨еĻԶǣ
Aָ                     Bʩ
CԤ㶨                     DһԶ
50͹ΪƵǣ
Aָ                     B㶨
CԤ㶨                    Dʩ
51ijɵλϸƷĹʱΪ4Сʱʱ䶨Ϊա
A4                     B2
C1                     D05
52ںͶ֯ʹûе£ɵλϸƷĵʩеʱ䲻
Aɱжʱ                            Bͣʱ
Cɱ޸ɹʱ                 D͸µĹʱ
53ù̶ʲ۾ʱ̶ʲ۾루޹ء
A̶ʲԭֵ                     BԤʹ
CԤܹ                     DԤƾֵ
54зУֱӷѵǣ
Aΰ˷                     B
Cҹʩ                     Dʩλʱʩ
55ֽУԾӪɱܳɱΪֽĿǣ
A©                     Bظ
Cֽ                     Dֽ
56ҹʵУӦƱҪָ Դ
AҵƱ                     BлƱ
CбƱ                     D֧Ʊ
57ֱӹ̷ָʩкķѵĹɹʵĸãϷѺʩеʹ÷ѡ
A˹                                   Bְ
C˸                 DͶ
58иڹðǣ
AͶշ                     Bҵշ
Cᾭ                        Ddzʧ
59ʱָ
AҵȨͬȨı
BҵȨͬȨı
CҵȨͬȨı
DҵȨͬȨı
60иʩҵǣ
A豸                     Bʩе
Cʱʩ                     Dת