5厘米____5分米
60分米____6米
纯净物
混合物
电解质
非电解质
A
硫酸
水煤气
铜
B
胆矾
碱石灰
硫酸钡
NH3
C
纯碱
蔗糖溶液
氯化钠溶液
三氧化硫
D
冰醋酸
氢氧化铁胶体
苛性钾溶液
乙醇
They are planning to tear down these apartments and________an office building here.
It is two o'clock on the afternoon.
香港、澳门地处南海之滨,所属的气候类型是( )
— Excuse me, but could you tell me when the banks will be open today? —_______. It's a public holiday.