哪种抗癌药在体外没有抗癌作用
A. 放线菌素D
B. 环磷酰胺
C. 阿糖胞苷
D. 羟基脲
E. 氮芥
恶性肿瘤化疗后易复发的原因
A. G1期细胞对抗癌药不敏感
B. S期细胞对抗癌药不敏感
C. G2期细胞对抗癌药不敏感
D. M期细胞对抗癌药不敏感
E. G0期细胞对抗癌药不敏感
How many short stories are we going to read throughout this semester?
A. 10
B. 9
C. 8
D. 7
How many poems will we read in this semester?
A. 1
B. 2
C. 3
D. 4