明太祖加强君权的根本目的是[ ]

A．削弱地方官员的权力

B．维护地主阶级的统治

C．抵抗外来势力的入侵

D．完善君主专制政体

According to F. de Saussure, （）refers to the abstract linguistic system shared by all the mem- bers of a speech community.

A.parole

B.performance

C.langue

D.Language