根据对话内容，选出能填入空白处的最佳句子。

A: Hello, Sam?

B: Maria? Hi！         小题1:      

A: I’m in Mexico!        小题2:        

B: Oh, thanks.

A: So how is it going there?

B: Great!      小题3:        

A: Pretty good.      小题4:       

B: Terrible. It’s cold and raining.

A: Well,       小题5:      

B: I’m having a party. My whole family is here.

A: That sounds like fun.

下列临床表现最有利于有机磷农药中毒诊断的是

A．腹泻
B．气急
C．紫绀
D．蒜臭
E．昏迷