Britain said Thursday it was 'very disappointed' that Chinese dissident Liu Xiaobo's 11-year jail term was upheld on appeal, adding that it 'calls into question' freedom of expression in China. 'We are very disappointed that Liu Xiaobo's appeal has been unsuccessful,' a Foreign Office spokesman said. 'The decision once again calls into question freedom of expression in China,' he added, noting that the decision had 'rightly been condemned' by the European Union. 