thirty minutes和thirty-minute的区别是什么

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/05 22:33:24

thirty minutes和thirty-minute的区别是什么
CCTV is the biggest television station in China.Its _____evening news.
A.thirty minute B.thirty minutes C.thirty-minute

选c thirty-minute相当于形容词,直接做定语；thirty minutes只是单纯的指30分钟,如果做定语的话要加's.

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