A:中华文化源远流长
B:中华传统文化都是优秀的
C:中华文化博大精深
D:我国传统文化是中华民族之魂
Air pollution has become ______ than ever before. We must do something to stop it.
What would ____(your/you)like?
函数y=log2(x+1)的图象经过( )
巴斯德在实验中首先要把两个瓶内的肉汤煮沸,目的是( )