以下哪个药物不属于烷化剂类抗肿瘤药物
A.美法仑 B.白消安 C.塞替派D.异环磷酰胺 E.巯嘌呤
参考答案:E
It is said that dogs will keep you _________for as long as you want when you are feeling lonely.
A.safety
B.company
C.house
D.friend
类上皮细胞来源于()
A.中性粒细胞
B.成纤维细胞
C.巨噬细胞
D.浆细胞
E.淋巴细胞