抗原刺激后体液免疫应答中最先产生的抗体为
A.IgA型抗体B.IgD型抗体C.IgE型抗体D.IgM型抗体E.IgG型抗体
参考答案:D
VII. 单词拼写(共10题,每题1分,共10分)
71. I’m sorry, but I didn’t mean to keep you waiting here for a long time.
Can you f______ (原谅)me?
72. The boy lifted the stone with all his s_______(力量).
73. To succeed as an artist one must c_________(结合) talent and discipline.
74. I didn’t mind. I_________(实际上), I was pleased.
75. They entered the area without p________(许可)
76. He was honoured with an a______ (奖)for excellence in teaching.
77.His experience is u____________(难以置信的)
78.How the dinosaurs disappeared on the earth remains a p_______(谜)
79.If you have any problem with the words, you can c______(咨询) a dictionary.
80. In the end I lost my p______ (耐心)and shouted at her.
胃癌根治术D2代表的意义是
A.胃大部切除术
B.全胃切除术
C.完全清除第一站淋巴结
D.完全清除第二站淋巴结
E.完全清除第三站淋巴结