通过ADCC效应作用杀伤IgG包裹的肿瘤细胞的是（）
A.T细胞
B.B细胞
C.NK细胞
D.吞噬细胞
E.树突状细胞
参考答案：C
It's six now. Lanlan _____ up, but she often _____ up at half past six.[ ]
A. gets, is get
B. gets, is getting
C. is getting, gets
D. gets, gets
在CT图像排版与摄片过程中应注意哪些问题？
