______ of danger in the street at night, she had to go home, with a friend _____ her.

A．Warned ; accompanied

B．Warning; accompanying

C．Having warned; accompanied

D．Having been warned; accompanying

细胞脱水特别是脑细胞脱水时，应采用哪种液体治疗（）。

A.等渗盐水

B.高渗盐水

C.5%葡萄糖液

D.5%碳酸氢钠液

E.2：1溶液