A:m <14
B:m ≤14
C:m ≥14
D:m ≤14 且m≠0
根据丙组实验可以判定,当液体的表面积、____相同时,液体蒸发的快慢与____有关.
The doctor says that you will end up in hospital _________ you go on smoking like that.
孝敬父母是中华民族的传统美德,下列古语中反映出子女对父母感激之情的是( )