男性，30岁，慢性肾炎，水肿少尿1个月，呕吐3天，血压160/90mmHg，两肺底散在水泡音，颈静脉怒张，BUN40mmol/L，血钾6.5mmol/L，最宜采用（）

A.0.9%生理盐水

B.5%碳酸氢钠

C.50%葡萄糖

D.血液透析

E.以上都不是

It was not until nearly a month later _________I received the managers reply.

A．since

B．when

C．as

D．that