下列不属于司令部内外关系的主要特点的是（）
A.复杂性
B.制约性
C.互补性
D.先后性
参考答案：D
—Can you guess what’s the front page news today?
—Of course, these days everybody _____ about the earthquake.[ ]
A. is talking
B. talked
C. has talked
D. had talked
属于细胞周期时相特异药物的化疗药是( )
A．环磷酰胺
B．氮芥
C．丝裂霉素
D．阿霉素
E．长春新碱
