题目

完形填空 Amazon.comInc. is checking out of China's fiercely competitive domestic e-commercemarket. The company told sellers on Thursday that it would no longer 1 its third-party online marketplace or provideseller services on its Chinese website, Amazon.cn. 2,domestic companies will no longer be able to sell products to Chinese consumerson its e-commerce platform. The decision marks an end to a long 3 by America's e-commerce giants in the Chinese market. The firms entered the Chinese market with great attention in the early 2000s, only to 4 in the face of competition from China's faster-mo双曲线9y2-16x2=144的离心率为（　　）A．54B．45C．53D．43