Which of the following is the internal factor within the language system that causes changes in word-meaning?（ ）
A.Analogy
B.Contrast
C.Historical reason
D.Psychological need
正确答案是A
Which of the following is the internal factor within the language system that causes changes in word-meaning?（ ）
A.Analogy
B.Contrast
C.Historical reason
D.Psychological need
正确答案是A