I was told ________ twenty years ago, but it has changed a lot so far.
A:what did my hometown look like
B:how my hometown looked like
C:what my hometown was like
D:how is my hometown like
你认为实验方案____更好些,你的理由是:____.
为三国鼎立局面形成奠定基础的是( )
厦深铁路全线预计2013年初建成通车,看下图,说说从东向西依次经过的经济特区是( )①珠海 ②深圳 ③汕头 ④厦门
人们常把苔藓植物当作空气污染程度的指示植物是因为它( )
2×9+3=____
6×5+2=____