【判断题】预防接种后出现接种局部的红肿热痛时,可用干净毛巾热敷。
【多选题】关于维生素D错误的是
E.
大量钙制剂和维生素D合用有导致高钙血症的危险
【单选题】They spent all their spare time, ______ their spare money, on their experiment.
【单选题】埋在地下的铸铁输油管道,在下列各种情况下,腐蚀最慢的是( )
【单选题】在中国古代男方把下列什么物品作为求婚的聘礼?
【简答题】The Kendlers trained their subjects separately in the two stages of their experiment, but not in how to ______ the two actions.