患者男，28岁。有DU病史4年，3天前大量饮酒后，上腹疼痛持续不缓解，服法莫替丁无效。7小时前突然疼痛消失，但自觉头晕、眼花、无力，继而呕吐暗红色血约1300ml。家人送入院途中又呕血约400ml。体检：脉搏120次/分，血压80/54mmHg。面色苍白，四肢湿冷，周身大汗，呼吸急促，略烦躁不安。腹部平软，剑突下有轻压痛，肝脾肋下未触及，肠鸣音亢进。考虑患者可能发生了（）

A.休克

B.低血糖

C.肝性脑病

D.氮质血症

E.继发感染

Having heard wolves howling in the forest, Lala       her walk up the path to the caves fearing that there might be wild beasts lying in wait for her．

A．accumulated

B．circulated

C．accelerated

D．calculated