Raincoat Relax Request Refer16/20Pick out the word that has the primary stress different from that of the other words.RaincoatRelaxRequestReferGiải thíchĐáp án AĐáp án A /ˈreɪŋ.kəʊt/Đáp án B /rɪˈlæks/Đáp án C /rɪˈkwest/Đáp án D /rɪˈfɜːr/