When the meeting was _____, they all rose and left. [ ]

A. at the end

B. at an end

C. at the end of

D. at an end of

下列情况中，不能行根治性胃癌手术的是（）

A.肝总动脉淋巴结有转移时

B.腹腔动脉淋巴结有转移时

C.肝、腹膜、肠系膜广泛转移时

D.癌浸润到横结肠或脾脏时

E.肝左外叶局限性癌浸润时