月男孩发热,腹泻、呕吐3天入院,精神萎靡,呼吸45次/分钟,

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问题: 月男孩发热,腹泻、呕吐3天入院,精神萎靡,呼吸45次/分钟,略促及深长;中度失水征,腹软气胀,余无异常。血钠127mmol/L,血钾4mmol/L,氯100mmol/L,CO₂CP15mmol/L,第1天补液应是

A: 100ml/(kg·d)1:1液,不补钾

B:100ml/(kg·d)4:3:2液,不补钾

C:150ml/(kg·d)2:3:1液,见尿后补钾

D:150ml/(kg·d)4:3:2液,见尿后补钾

E:200ml/(kg·d)4:3:2液,见尿后补钾