河南成教 / 英语词汇学
正确率：100%
[单选题] The two major factors that cause changes in meaning are ______. （ ）
A. historical reason and class reason
B.historical reason and psychological reason
C.class reason and psychological reason
D.extra-linguistic factors and linguistic factors
A. historical reason and class reason
B.historical reason and psychological reason
C.class reason and psychological reason
D.extra-linguistic factors and linguistic factors
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