10, In general, linguistic change in the___________ system and t

10, In general, linguistic change in the___________ system and the vocabulary of a languageis more noticeable than that in other systems of the grammar.
A、syntactic
B、morphological
C、sound
D、semantic
【正确答案】：C
【题目解析】：一般来说，一种语言的声音系统和词汇的语言变化比其他语法系统更为明显。