A:what was it
B:why it was thi
C:how that wa
D:what it was that
下列对诗歌《过零丁洋》内容理解有误的一项是( )
选 项
物质(括号内为杂质)
除去杂质的方法
A
CO2气体(CO)
点燃
B
N2气体(CO2)
通过澄清石灰水
C
K2CO3固体(KCl)
加水溶解,过滤
D
Na2NO3溶液(Na2SO4)
加盐酸