Vice president's 4-nation trip fruitful Chinese Vice President Zeng Qinghong's vists to Tunis, Togo, Benin and South Africa on June 20-29 achieved positive results, Chinese Vice Foreign Minister Dai Bingguo said Tuesday. China inspires S. Africans' anti-apartheid fight: Mandela South Africa's veteran freedom fighter Nelson Mandela said here Monday that the Chinese people's fight for national independence decades ago had inspired South Africans and now the two countries should further improve bilateral ties.