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DETROIT - Elizabeth Warren and Bernie Sanders offered an unabashed defense of their progressive policies during a Democratic presidential debate on Tuesday, as their more moderate rivals took aim at their proposals as unrealistic and politically untenable.

Crews covered up Google’s booth as the rain came down. (GeekWire Photo / Kevin Lisota)

Currently, Ofo's bike-sharing services cover more than 100 million users in over 170 cities across eight countries, while Mobike has more than 6 million bikes in nearly 160 cities globally, including Singapore, the United Kingdom, Japan and Italy.

Ctrip users have booked trips to 90 countries and regions through the online platform for the week-long holiday in early October, said the report.

Customs officials check a container truck loaded with international mail in Qingdao, Shandong province, on April 15. [Photo by Li Xuan/for chinadaily.com.cn]