A:You must go for a picnic on Wednesday.
B:Why not go for a picnic on Wednesday?It will be sunny.
C:It will be sunny on Wednesday.
在与珠江三角洲地区形成“前店后厂”合作模式的过程中,港澳地区的优势条件有( )
物质
密度(kg/m3)
金
19.3×103
铜
8.9×103
铁
7.9×103
铝
2.7×103