单选题在海上旅客运输中,旅客的义务主要是().A支付票款B在船期间服从船长的指挥和管理C不擅自携带危险物品D以上都是
单选题
在海上旅客运输中,旅客的义务主要是().
A
支付票款
B
在船期间服从船长的指挥和管理
C
不擅自携带危险物品
D
以上都是
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