确定应收账款收现保证率的目的是为了确定应收账款最高收现水平的控制标准。( )
参考答案:错
解析: 确定应收账款收现保证率的目的是为了确定应收账款最低收现水平的控制标准。
--- I phoned you at six yesterday afternoon, but nobody answered.
--- Oh, I __________a walk with my parents near the river.
A.am taking
B.was taking
C.took
D.will take
仡佬族的族缘大致经历了哪三个历史发展时期?