下列哪些细胞间相互作用受MHC-Ⅱ分子限制() A.NK细胞杀伤肿瘤细胞 B.APC 发布时间:2017-05-30 14:58 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 下列哪些细胞间相互作用受MHC-Ⅱ分子限制()A.NK细胞杀伤肿瘤细胞B.APC呈递抗原给Th细胞C.Mψ吞噬靶细胞D.Tc细胞杀伤靶细胞E.B淋巴细胞识别外来抗原
题型:单项选择题 A1/A2型题 ---What do you think is the matter with your car? ---Well, it _____ start at all. I mean I turned the key and nothing happened. A.shan’tB.won’tC.mustn’tD.shouldn’t 查看答案
题型:单项选择题 A1/A2型题 — Have you heard of the story of “The Merchant of Venice”?— No. When and where does the story ______ ?A.take upB.take onC.take placeD.take off 查看答案