  In this paper, we construct a new Lax operator for the elliptic $A_{n-1}$
Calogero-Moser model with general $n(2\leq n$) from the classical dynamical
twisting,in which the corresponding r-matrix is purely numeric (nondynamical
one). The nondynamical r-matrix structure of this Lax operator is obtained,
which is elliptic $Z_n$-symmetric r-matrix.
