肠梗阻诊断明确后，最重要的是确定

A．梗阻的程度

B．梗阻的原因

C．梗阻的部位

D．梗阻是否引起肠绞窄

E．梗阻的发生速度

根据句意和汉语提示，填写恰当的短语完成下列句子。

1. In Switzerland it's very important to be        (准时).

2. They        (握手) and started a conversation at once.

3. Don't be angry with him.        (毕竟), he is still a child.

4. They don't usually have to          (做计划) to meet their friend

5. He lives near the city mall. We can        (顺便拜访他家) when we go there for shopping.