搜尋有關權力分立原則之敘述下列何者正確

搜尋有關權力分立原則之敘述下列何者正確

Count and calculate using this fully customizable abacus. Features:* 5 to 8 Counting Rows* 4 Bead Types* 4 Frame Types* 2 Modes (Standard and Chinese) …
Abacus