未知题型 为了增强卖家和买家之间的沟通，Amazon于2019年5月上线了（）。

单项选择题 由于速卖通业务的单笔订单成交金额少，因此送出去的包裹价值普遍较低，没有达到进口国海关的关税最低起征点，因而无关税支出

单项选择题 Amazon的主要经营模式是B2C，但是平台同时也存在B2B模块

未知题型 It can be inferred from the passage that 'easy conclusion'(Paragraph 3) is based on one of the following assumptions:A.People who migrate from rural areas to large cities usually do so for economic reasons.B.Most people who leave rural areas to take jobs in cities return to rural areas as soon as it is financially possible for them to do so.C.People with rural backgrounds are less likely to succeed economically in cities than are those with urban backgrounds.D.Most people who were once skilled workers are not willing to work as un- skilled workers.

单项选择题 Wish平台的页面展示空间也有限，不提供比价功能