制备单克隆抗体最常用的细胞融合剂为 ()
A.HAT
B.8-AG
C.PEG
D.PHA
E.BSA
参考答案:C
The next morning there was always something in anyone else's stockings. Only mine hung there __________.
A.high
B.nothing
C.full
D.empty
支原体肺炎()
A.常伴有头痛
B.易在冬季发生
C.常伴有咽炎,有时有大疱性鼓膜炎
D.常引起双侧肺浸润
E.治疗首选头孢菌素