患者，男，46岁，消化性溃疡8年伴幽门梗阻，反复呕吐宿食，消瘦，皮肤干燥，术前准备后，行硬膜外麻醉下胃大部切除术。

目前最重要的护理诊断是（）。

A.体液不足

B.组织灌注量改变

C.营养不良

D.疼痛

E.恐惧

根据课文内容，补全对话。

Lily: Good morning , Lisa .

Lisa: Good morning, Lily. Nice to see you 1______.

Lily: I 2______ to this neighbourhood last week .

Lisa: 3______? Welcome to my neighbourhood!

Lily: Thank you. By the way, I want to go to the post 4______. 5______ where is it?

Lisa: Go straight 6______ this road. When you 7______ to the main street, 8______ left. 

        Go straight 9______ that street. You will see a green 10______ on the left.

Lily: Thank you.

Lisa: You are welcome.