­—You look so young. Haven’t you graduated from your university?

—Yes, I________in the English Department of Shandong University for four years.

A．studied

B．study

C．had studied

D．was studying

女性．50岁。2天前无意中发现右乳外上象限包块，约3cm×4cm大小，边界不清，局部皮肤凹陷，右腋窝可及直径1cm淋巴结，质硬，活动度可。

术后病理免疫组化结果显示c-ErbB-2强阳性（+++），其后续治疗还可采取（）。

A.紫杉醇

B.表柔比星

C.氟尿嘧啶

D.他莫昔芬

E.赫赛汀