按照阻燃剂的耐洗性,阻燃整理分为?
参考答案:
非、半、耐久性阻燃剂
营养不良的并发症不包括()
A.缺铁性贫血
B.营养不良性水肿
C.多种维生素缺乏
D.大脑发育不全
E.自发性低血糖
Here _________ your books. [ ]
A. is
B. are
C. has
D. have