The number of the foreign tourists to visit the US is expected to be more than 2 million by

20l5,           l4 billion to the US economy.[ ]

A. to contribute

B. contributing

C. contributed

D. to be contributing

患者女，60岁，因“突发右上腹痛8h”来诊。查体：T37.5℃，P75次/min，BP110/80mmHg；右上腹有深压痛，无肌紧张、反跳痛。

通常不应作为首选的治疗方案有（）.（提示：血WBC11×10/L。住院后经消炎、解痉治疗1d后，腹痛不缓解，T38.6℃，BP120/85mmHg，腹部轻度肌紧张，复查血WBC20×10/L。）

A.抗炎

B.补液、胃肠减压

C.胰腺坏死组织清除术

D.急诊胆囊切除术

E.急诊胆囊切除＋胆总管探查术

F.急诊胆囊造瘘术，二期手术切除胆囊