A:①蒸馏 ②过滤 ③分液
B:①分液 ②蒸馏 ③蒸馏
C:①蒸馏 ②分液 ③分液
D:①分液 ②蒸馏 ③过滤
He _______ his homework and is now listening to music.
下列说法正确的是( )