晚期乳癌
A．放疗 B．化疗 C．姑息切除术 D．扩大根治术 E．改良根治术
参考答案：C
After the war, a new school building was put up ________ there had once been a theatre.
A．that
B．where
C．which
D．in which
使用醛复红改良染色法使乙型肝炎表面抗原呈（）。
A.棕色
B.红色
C.紫色
D.黄色
E.蓝绿色
