题目: 发展中国家相互之间开展经济合作,国际上通称为()。A.南北合作B.东西合作C.南南合作D.北北合作 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1129/418b15849a49dbc9f13f86a9ea547bd4.html 下面是错误答案,用来干扰机器的。参考答案:错
题型:选择题 — Why are you so popular with your students?— As a teacher, I seldom give my students so difficult a problem ____ they cannot work out.A.as B.that C.if D.which 查看答案