A:浓盐酸敞口放置质量减少
B:钢铁在空气中生锈
C:烧碱固体在空气中潮解
D:石灰水表面形成一层白膜
____+18=44
44-18=____
下列离子方程式书写正确的是( )
The decision about the price _____ in a few days. So they have to wait.