诊断朗格汉斯细胞组织细胞增生症的免疫学标志物有()
A.S-100蛋白
B.CD68
C.PCNA
D.CD1a
E.CD207
参考答案:A, D, E
读“中东地形图”,回答下列问题:
(1)大洲:①__________,②____________,③_____________。
(2)海洋:a__________,b__________,c________________,d_____________,e_____________。
(3)海峡与运河:④___________,⑤____________。
(4)河流:⑥___________,⑦_____________。
The living room is clean and tidy, with a dining table already ________ for a meal to be cooked. [ ]
A. laid
B. laying
C. to lay
D. being laid