水杨酸类药物均可以与三氯化铁在适当的条件下产生有色的铁配位化合物。
参考答案:对
A client has a perforated nasal septum. The nurse correctly judges the client to be a user of which of the following substances
A. Heroin.B. Cocaine.C. LSD.D. Marijuan
耐火制品开始软化时的温度称为(),耐火制品在一定荷重下的软化温度称为()。