题目内容：

    From Nov 8 to 10, 2017, US President Donald Trump paid his first state visit to China. His visit was described as a “state visit plus(升级版)” because of the special arrangements (安排).

Traditionally, a welcoming ceremony(仪式) will include a group of Chinese primary school students. But this time, there were also 10 US school children.

At the Great Hall of the People, Trump and his wife Melania Trump enjoyed a special performance of the traditional Chinese musical instrument bianzhong, which is not common for a welcoming ceremony and talks.

Also, Xi and first lady Peng Liyuan enjoyed Beijing Opera with Trump and his wife at the Palace Museum. This is the first time that the museum has hosted the Chinese president and his wife together with a visiting presidential couple from another country.

The “state visit plus” treatment(待遇) for Trump showed the determination (决心) and actions of both China and the US to improve China-US relations.

Trump expressed thanks to Xi, saying “To me, now there can be no more important subject than China-US relations.”

Together with Trump, there were 29 US business leaders coming to look for business chances. During Trump’s three-day visit, they signed 34 deals (协议) worth 1.7 trillion yuan with Chinese companies.

China-US relations are “at a new starting point”, and cooperation (合作) is “the only correct way” for the two countries, Xi said at a meeting between the two leaders.

根据上面短文回答下列问题，每小题答案不超过6个词。

1.Why did people describe Trump’s first state visit to China as a “state visit plus”?

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2.Where did the two leaders and their wives enjoy Beijing Opera?

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3.What does Trump think is the most important subject now?

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4.Who else came to China for business chances with Trump and Melania?

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5.According to Xi, how can China and the US keep and improve the relationship between each other ?

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