画一画,写一写A day on the farm.
Aday on the farm
On the farm, Ican see some animals. They are____ ,____ ,____ and____ . Look! The rabbits are white. Theylike grass. The ____ are ____ . They like____ . Don't ____ on the farm.
①Excel ②FrontPage ③Access ④PowerPoint( )
我国人口的长期基本国策是( )
①实行计划生育 ②控制人口数量 ③提高人口的质量 ④晚婚、晚育、少生、优生
如图是物质燃烧条件探究实验示意图,煤粉和木屑燃烧的顺序不同说明燃烧的条件之一是____.