本次实验需要安装的 Wordpress 版本是 A: 无所谓，最新版就行 B: Wordpress 4.7 C: Wordpress 4.7.1 D: Wordpress 4.7.2

4.7.1 Facial ExpressionsAs for facial expressions, which one is correct? A: China: control emotions, reveal neither joy nor anger B: Japan: hide expressions of anger, sorrow, or disappointment by laughing or smiling C: America: suppress emotions of anger, sorrow, or disappointment by laughing or smiling D: Mediterranean: exaggerate signs of sadness