下列各种容器,通常应分别用什么方法清洗?
(1)做过碘升华实验的烧杯 ____.
(2)长期存放过三氯化铁溶液的试剂瓶 ____.
(3)盛过苯酚的容器 ____
____ ( work) abroad for twenty years, the old man is on the way back to his motherland.