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The 1.5 m-tall metal and glass doors are the first barriers for China's oldest subway line, which started operations in 1971.
"My job is to look for some old friends who have links to high officials in Beijing. My job is not to negotiate, but to help pave the way, break the ice and rekindle the friendship that we had during my time with China," Ramos told a press conference here.
U.S. President Barack Obama also sent a congratulation letter for the opening ceremony.
BOOSTING TRADE, CONNECTIVITY IN EURASIA
On the eve of the G20 summit to be held next week in China, Obama and Xi will hold an "extensive bilateral meeting" on Saturday, Ben Rhodes, deputy national security adviser for strategic communications, told a White House news briefing.
来源：资阳报