泌尿系统药物中毒症状有（）
A.肾区叩痛
B.肾功能降低
C.氮质血症
D.电解质失衡
E.酸中毒
参考答案：A, B, C, D, E
物流标准化系统的主要特点有哪些
---What do you enjoy most in life?
---____________ time _________ books. It’s really good fun.
A．Spend; read
B．Spending; to read
C．To spend; to read
D．Spending; reading
