患者，男，40岁，上腹疼痛5年。餐后疼痛加重，上腹胀满不适，并有恶心、呕吐后症状缓解，临床检查见胃排空延迟、伴蠕动波。诊断首先考虑为（）。

A.慢性胃炎

B.胃溃疡

C.幽门梗阻

D.十二指肠穿透性溃疡

E.胃黏膜脱垂

As matter of fact, the damage to the winches was due to（）.

A.insufficiency of packaging

B.inherent vice of the cargo

C.improper stowage

D.rough handling