问题
单项选择题
以下关于细胞表面抗原的叙述,哪项是错误的()
A.细胞表面抗原多为镶嵌在膜中的糖蛋白和糖脂
B.淋巴细胞表面的免疫球蛋白等是抗原的受体
C.细胞免疫是细胞表面抗原与抗体相互识别并产生免疫应答的过程
D.HLA与器官移植有关,只存在于白细胞的细胞表面
E.T细胞表面有识别HLA抗原的受体
答案
参考答案:D
以下关于细胞表面抗原的叙述,哪项是错误的()
A.细胞表面抗原多为镶嵌在膜中的糖蛋白和糖脂
B.淋巴细胞表面的免疫球蛋白等是抗原的受体
C.细胞免疫是细胞表面抗原与抗体相互识别并产生免疫应答的过程
D.HLA与器官移植有关,只存在于白细胞的细胞表面
E.T细胞表面有识别HLA抗原的受体
参考答案:D
根据句意选择单词,并用适当形式填空。(共10小题,每小题1分,满分10分).
小题2: He ______ to his classmates and joined them in the heated discussion. 小题3: He has a good ________ of German. 小题4: He speaks English as as a native English speaker. 小题5: Mr.Wang, are you free _______? I’ve got some questions for you. 小题6:The girl finally ________ her shyness and stood up, answering the question. 小题7: The dark, rainy evening, the wind, the thundering clouds held me entirely in their_______. 小题8:Jane and Mary are good friends; the former is a teacher, and _______ is a nurse. 小题9:The wind is in the _______ direction. 小题10:Tom ____________ the doctor’s advice and goes on smoking. |