This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this This class was taught by the general secretary like this Source: Xinhua News Agency