①Al2O3 ②Al(OH)3 ③(NH4)2CO3 ④NaHCO3 ⑤BaCl2.
A:③④⑤
B:②③④⑤
C:①②③④
D:全部
下列关于动物行为的叙述,错误的是( )
— Tom, why not stop _________ a rest?
— Oh, no, mum. It's so interesting that I can't stop _________ the kite.