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Amazon’s summer intern program brings thousands of students to the city every summer, putting strain on the transit system. (King County Metro Transit Photo)

Amid light rain in Shanghai, a car automatically stopped at a designated point for pickup and waited for a passenger to get in. After the passenger fastened his or her seat belt, the self-driving car began its journey.

Amazon’s?Dash Replenishment Service?(DRS)?leverages sensors in a wide range of devices to detect when new supplies need to be ordered, triggering an automatic purchase and order from Amazon,?based on the user’s settings.

Among the reasons for the decline of the shows is the emergence of technology as the main battleground for connected, autonomous cars, which has drawn exhibitors to competing events such as the Consumer Electronics Show in Las Vegas and the Mobile World Congress in Barcelona.

Among the beneficiaries are companies that have moved production offshore. US President Donald Trump on Thursday visited Illinois and Iowa, the nation's leading soybean-producing states. While Trump said his use of tariffs and threats of tariffs have brought countries to the negotiating table, US farm groups are against it.