Many people thought little of me, but I did what _____. [ ]

A. I thought I was right

B. I thought it was right

C. I thought was right

D. I was thought what

1岁小儿，腹泻7天，经第一阶段输液后已排尿，呼吸平稳，脉搏有力，血钠136mmol/L，COCP18.6mmol/L，血钾3.6mmol/L。第二阶段应用哪种液体继续补液（）

A.4：3：2液

B.生理盐水

C.生理维持液

D.2：1等张含钠液

E.6：2：1含钠液