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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)

Among 53 listed central State firms that have so far filed annual reports with the Shanghai and Shenzhen stock exchanges, 43 firms, or more than 80 percent, witnessed surging profits last year.

Among them, Baoding city in Hebei, about 140 kilometers southwest of the capital, boasts the best achievement, with its average concentration of PM 2.5 during the period lowered to 53 micrograms per cubic meter, falling by 36.1 percent from the same period of 2018, according to the report.

Among all A-share companies in various industries, those in the finance sector invested the most in their poverty alleviation actions, followed by manufacturing and power and water. Education is ranked at the bottom on the list.

Amid the rapid development of e-commerce, complaints from consumers regarding online shopping persist, including issues with fake promotions, substandard products and difficulty in obtaining services after purchase, such as refunds.