Ⅲ. There are four choices following each statement. Mark the choice that can best complete the statement: If a linguistic study describes and analyzes the language people actually use, it is said to be （）

单项选择题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

单项选择题Language is said to be arbitrary because there is no logical connection between （）and meanings.

A.sense
B.sounds
C.objects
D.ideas

单项选择题The details of any language system is passed on from one generation to the next through （）, rather than by instinct.

A.learning
B.teaching
C.books
D.both A and B

单项选择题Language can be used to refer to contexts removed from the immediate situations of the speaker. This feature is called （）

A.displacement
B.duality
C.flexibility
D.cultural transmission

单项选择题Modern linguistics regards the written language as （）

A.primary
B.correct
C.secondary
D.stable