A manager demonstrates the latest research products for Yu Zhengsheng (R) in a botanic garden at the M-Grass Ecology & Environment Company in Hohhot, Inner Mongolia autonomous region, on Aug 9. [Photo/Xinhua]

Officials visit the Memorial Hall of Ulanhu, the autonomous region’s first chairman (1906-1988), in Hohhot, Inner Mongolia autonomous region, on Aug 9. [Photo/Xinhua]