A：生活中经常饮用蒸馏水对人体健康有益
B：用肥皂水可鉴别硬水和软水
C：隔夜的白开水应及时倒掉
D：河水经过沉淀、过滤、吸附后即可除去所有杂质
The football final will at Moonlight Middle School next Sunday.
— Where was your dad at this time last night? —He was talking with my uncle I was looking for some information on the Internet.
计算：2x+x=____．
1853年，太平军占领南京，并把南京改名为天津，定为都城，建立起与清朝对峙的政权。____
