目前，对科学的定义普遍认可谁提出的较为精准（）
A、牛顿
B、爱因斯坦
C、马克思
D、恩格斯
参考答案：B
小题1:How are you today? - I'm feeling much____ (bad) than yesterday.
小题2: If you put your heart into studying English, you will be___(success) in the future.
小题3:There are two_____．(different) in the following pictures.
小题4:1 live on the____(twelve)floor of the building.
小题5:Would you mind_________(close) the window?
什么是理论空气量和实际空气量？
