抢救糖尿病酮症酸中毒应用碳酸氢钠的指征是（）。

A.出现低钾血症

B.常规应用

C.二氧化碳结合力<5.9mmol/L或血pH<7.1

D.出现严重心律失常

E.合并严重感染

— Are we going to have sports meeting this week?

— No. It’s ______till next week because of the bad weather.

A．put away

B．put on

C．put up

D．put off