播散性前列腺癌最有效的治疗药物是（）
A.己烯雌酚
B.丙酸睾酮
C.甲氨蝶呤
D.白消安
E.放射性碘131I
参考答案：A
— Excuse me, where is Mr. Green's office?
— Sorry, I don't know. I ___here for only a few days.
A．work
B．worked
C．have worked
D．will work
A．ATM技术
B．光纤接入技术
C．多媒体技术
D．SDH技术
