英语语法分析

Objective To study the surgical treatment in massive hemorrhage of gastroduodenal ulcer.

目的探讨胃十二指肠溃疡大出血的外科治疗。

Objective: To summarize the diagnosis and management in perforation of gastroduodenal ulcer.

目的：总结胃十二指肠溃疡穿孔的诊断和治疗。

Objective To investigate the diagnosis and treatment of the acute perforated gastroduodenal ulcer.

目的探讨急性胃十二指肠溃疡穿孔的诊断和治疗方法。