严重损害骨髓造血机能的药物是（）
A．青霉素
B．链霉素
C．磺胺嘧啶
D．四环素
E．氯霉素
参考答案：E
Fully ____________ looking after three children at home, she no longer has time to enjoy the various activities in the club.
A．attached
B．occupied
C．contributed
D．devoted
文学欣赏过程中，欣赏主体多种心理机能里最活跃的因素是（）
A.想象
B.思维
C.情感
D.理智
