异基因造血干细胞移植后导致移植物抗宿主病(GVHD)系供者()
A．单核细胞
B．T淋巴细胞
C．B淋巴细胞
D．浆细胞
E．中性粒细胞
参考答案：B
下列何种细菌在一定条件可形成L型菌（）
A.军团菌
B.支原体
C.结核分枝杆菌
D.流感嗜血杆菌
E.衣原体
Only ticketholders were ________ to the stadium for the concert given by Jay Chou, so many of
his fans were turned away. [ ]
A. allowed
B. permitted
C. agreed
D. admitted
