【单选题】WTO贸易无歧视原则是通以下二方面来体现的:( )
【简答题】An AWB is called a( )if the air carrier is not specified in the air waybill.
【判断题】House air waybills are often accompanied by a master air waybill for consolidated shipments.( )
【简答题】呼吸作用释放的能量,一部分形成 ,供生命活动需要,另一部分则以 的形式散出。