Despite a flurry of diplomatic activity in Geneva, prospects for a peace settlement seemed as ______ as ever.

A．remote

B．provocative

C．positive

D．relocated

患者头晕、乏力、恶心呕吐、血清Na⁺130 mmol/L、Cl^-85 mmol/L、血清K⁺4.5 mmol/L、HCO₃^-30 mmol/L，尿相对密度1.010，水、电解质、酸碱失调类型是（）

A.等渗性脱水

B.低渗性脱水

C.代谢性碱中毒

D.代谢性酸中毒

E.机体总钾可能缺乏