严重烧伤患者休克期出现烦躁不安、血压下降,主要是由于( )
A.疼痛 B.中枢神经系统异常 C.血容量不足 D.脓毒症 E.心理因素
参考答案:C
Things were not they had been before.[ ]
A. as
B. whoever
C. who
D. when
政策执行的方式与手段有哪些