题型:选择题 Mary and Mike ___________ last year. [ ]A. married B. get married C. went married D. got married 查看答案
题型:单项选择题 同一物体各部分之间或相互接触的两物体之间,如果存在温差,则热量就会从高温度部位传递到低温度部位,最终使温度趋向平衡,这种热量交换现象叫做()。A、热对流B、热辐射C、热交换D、热传导 查看答案