What can the tree’s rings tell us（）
A: The age of the tree.
B: The changing activities of sun.
C: A lot more.
D: All the above.
A: The age of the tree.
B: The changing activities of sun.
C: A lot more.
D: All the above.
举一反三
- The age of a tree can be determined accurately by counting the number of tree rings it has _____.
- Who’s in the tree A: The tree’s falling down. B: The boy’s falling out of the tree. C: The woman’s shouting.
- G is a tree, then G's spanning tree has ( ) tree. A: 1 B: 0 C: 2 D: I'm not sure
- In the mornings, there are a lot of small birds _______ the tree at the corner of my garden.( ) A: in B: on C: at D: above
- Is this __________ apple tree? No, it is __________ orange tree.