1、单选题:An outbreak of a contagious disease that spreads rapidly and widely. ( )选项:A:bio-statisticsB:epidemicC:hypertensionD:sanitation答案: 【epidemic】
2、单选题:A condition or practice c...
1、判断题:Decide true or false: Every ethnic group has a way of determining or expressing membership.
选项:A:对B:错答案: 【对】
2、单选题:At Double Ninth Festival, what do people usually do? 选项...