A:0,﹣5, 13
B:13 ,0,﹣5
C:13 ,﹣5,0
D:5, 13 ,0
It seems that the old man for something over there.
下列关于哲学和世界观的说法中,正确的有( )
取8.0g铝土矿(主要成分是Al2O3),溶于128.4g稀盐酸中,盐酸恰好完全反应.经过滤、干燥后,得到滤渣2.9g,(假定铝土矿样品中所含的杂质不溶于盐酸).