单项选择题 跨境电商具有跨国交易、订单零碎的特点，因此在产品开发和采购、仓储等过程中容易出现混乱现象。

未知题型 What is Kelley's main purpose of writing the letters?A.To educate his students.B.To have pictures for his office wall.C.To improve his students' letter writing skills.D.To help his students know more about the celebrities.

单项选择题 会计主要的计量单位是实物。

单项选择题 根据履约模式不同可分为平台模式和自营模式。

单项选择题 价值低、重量轻的产品适合选择国际小包