copyright 2009, The Washington Post BEIJING -- President Obama and his Chinese counterpart, Hu Jintao, met officially for more than an hour Tuesday at China's Great Hall of the People, and the U.S. president was expected to press the Chinese leader for possible new sanctions on Iran, a stepped-up Chinese role in Afghanistan and the relative strengths of the countries' respective currencies. The two leaders were also trying to find agreement on some modest climate-change goals for the upcoming environmental summit in Copenhagen and on edging North Korea back to multilateral talks over its nuclear program. 'I'm very happy to have talks with you,' Hu told Obama at the start of the meeting. 'You have worked actively to promote this relationship.' Obama replied, 'We believe strong dialogue is important not only for the U.S. and China, but for the rest of the world.' The two already met once over dinner Monday night, shortly after Obama arrived in the frigid Chinese capital from Shanghai. National security adviser James Jones described that meeting between as an 'informal dinner discussion' in which the two leaders discussed 'the evolution and histories of China and the United States.' Jones said the two also spoke at length about education, but he did not elaborate. PICKUP 3rdgraf: Reflecting the broad range of issues xxx. 