UN human development report shows China's great progressForeign Ministry helped thousands of overseas Chinese, Wang saysOfficials from central government, HKSAR refute Western media reports on Article 23Meet trying to divide world, observers sayChina, Angola elevate bilateral tiesXi emphasizes no letup in drive to combat air pollutionBeijing's efforts seen as key to resolving crisisXi congratulates Zardari on election as Pakistani presidentWang's NZ visit comes at pivotal time in relations, analysts sayJapan offers $20m to IAEA during agency's head visit