自1972年麦库姆斯和肖提出议程设置假设开始，议程设置研究至今已有三十多年的历史了。

Since agenda-setting hypothesis was put forward by McCombs and Shaw in 1972, the research on it has a history of more than 30 years.

youdao

自1972年麦库姆斯和肖提出议程设置假设开始，议程设置研究至今已有三十多年的历史了。

Since agenda-setting hypothesis was put forward by McCombs and Shaw in 1972, the research on it has a history of more than 30 years.

youdao