题目内容

Which of the following isnt a major branch of linguistics?

A. Phonetics
B. Pragmatics
C. Speech
D. Sociolinguistics

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______is the knowledge of the rules of an ideal speakers language.

A. Performance
B. Capacity
C. Ability
D. Competence

下列防腐剂中对霉菌的抑菌能力较好的是()

A. 尼泊金类
B. 乙醇
C. 山梨酸
D. 苯甲酸
E. 甘油

纳米乳粒径范围为()

A. <1nm
B. 10~100nm
C. 100~500nm
D. 500~1000μm
E. 1~100μm

Which of the following is NOT a design feature of human languages?

Arbitrariness.
B. Displacement.
C. Duality.
Diachronicity.

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