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Applicants are requested undergo a nucleic acid test before booking their dates of visit. There is a daily limit on applications and visitors will be allowed on a "first come, first served" basis. As per the bureau, visitors can apply via the official website, WeChat public account or the app. Visitors should apply 24 hours ahead of the visit.

Aretha Franklin performs at Radio City Music Hall in New York in this February 17, 2012. [Photo/Agencies]

Around 500 men, women and children, part of a caravan of roughly 5,000 mainly Hondurans who have been trekking toward the US for weeks, scrambled over a rusted metal fence and surged into a concrete riverbed toward San Diego on Sunday.

Areas that met their home-conversion targets by installing central heating boilers on schedule have been ordered not to expand their programs, while people in areas where work is unfinished are being given replacement conventional boilers and clean coal to heat their homes, Liang said.

Around 100 sea water desalination projects will be built or upgraded in 16 coastal provinces and cities, adding 600,000 tonnes of daily desalination capacity to the existing capacity of 135,700 tonnes, according to a plan issued by the National Development and Reform Commission and the State Oceanic Administration.