A、Please fill in the forms. B、Please change your packing box. C、I suggest you put some cushioning material in it. D、Please complete the forms.
A、存儲(chǔ)器 B、CPU C、UPU D、中央處理器
A、堅(jiān)硬輕小的物品 B、未使用的郵票 C、帶郵資的封、片、卡 D、各類證件