【C14】A．forestB．vegetationC．plantsD．trees

A．policeB．trafficC．petsD．trees

答案解析

下列命令属于外部命令（)A.DATEB.COPYC.TYPED.TREE

答案解析

【C4】A．producesB．createsC．plantsD．manufactures

答案解析

What does the passage mainly talk about？A．The three benefits brought by trees.B．Trees and

答案解析

According to the passage, what is the best choice of Christmas trees？A．A real tree that is

答案解析

It is believed that the tradition of having a pine tree as a Christmas Tree comes fro

答案解析

I can see an apple _______ the apple tree and a bird _______ the banana tree.

答案解析