同义词
1)alternative,n.二选一;供选择的东西;取舍 a.二选一的2)a choice between two alternatives,二择一的选择任务3)AE: Kristy McNichol. Classic choice.,一流的选择。4)Duodecimal,十二进制,十二选一的5)the selection of primary air fan and secondary air fan,一、二次风机选取6)alternate response item,二选一选择回答题