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At an altitude of 1,000 meters, the vineyards of Ningxia extend over the foothills of the Helan mountain range and owe their existence to an irrigation program with water sourced from the Yellow River.

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Aside from rising cost, the iron and steel industry has also seen product prices weaken for the first nine months of the year.

At least three cooperation deals are expected to be signed during the end of the conference, the committee said.

Asked whether he would wear a mask publicly, Trump said: "I mean, I'd have no problem. Actually, I had a mask on. I sort of liked the way I looked."