The Exhibition Hall of Evidence of Crimes Committed by Unit 731 of the Japanese Imperial Army, in Harbin, Northeast China’s Heilongjiang Province, unveiled the complete video testimony of former Unit 731 member Masakuni Kurumizawa for the first time in China on Monday, the 88th anniversary of the July 7 Incident, an event marked the start of Japan’s full-scale invasion of China and China’s whole-nation resistance against the Japanese invaders, CCTV reported on Monday.