The elderly ______ good care of in public places like supermarkets and airports; they are likely to get lost.

A．can have been taken

B．ought to be taking

C．must be taken

D．should take

关于应对顺铂所致肾毒性的措施，下列说法错误的是（）

A.使用时应充分水化，并及时给予利尿剂

B.定期检测电解质、肾功能，同时观察24h尿量及尿颜色

C.必要时给予碳酸氢钠碱化尿液和别嘌醇

D.肾功能不全者可以使用

E.使用时鼓励患者多饮水