An assistant helps a bride adjust the dress for her wedding portrait under golden gingko trees outside the Diaoyutai State Guesthouse in Beijing on Nov 9, 2010. Leaves from the gingko trees along the boulevard turned golden recently, attracting lots of visitors to take pictures and enjoy autumn in the capital. [Photo/CFP] 

Britain's Prime Minister David Cameron (C) drinks tea with entrepreneurs in a converted temple during a trade mission to Beijing, Nov 9, 2010. Cameron said he was aiming to double bilateral trade with China to more than $100 billion (62 billion pounds) a year by 2015. [Photo/Agencies]