A:农村
B:牧村
C:渔村
D:林场
如图是制作洋葱鳞片叶内表皮细胞临时装片的步骤,它们的先后顺序是( )
听独白,完成信息记录表。
How far is the school from Peter's home?
It's about kilometers.
How does Peter go to school?
He goes .
How many students are there?
There are students.
Where is the park?
It's the school.
What does Peter do in the park?
He plays with his friends.
根据你对“非洲某地环境恶性发展循环图的理解,将下列各选项填入循环图的空格中:
①土地荒漠化 ②人口增长过快 ③粮食短缺(只填序号即可)
A____ ,B____ ,C____ .