He offered to _____ her a hand as the suitcase was too heavy for her to carry.

A．lend

B．help

C．show

D．loan

对于绝经后乳腺癌患者，内分泌治疗首选的物药（）

A.芳香化酶抑制剂

B.雌激素

C.三苯氧胺+氟尿嘧啶

D.赫赛汀

E.紫杉醇