小王利用计算机设计了一个计算程序，输入和输出的数据如下表：

那么，当输入数据是8时，输出的数据是（　　）

A. B. C.

D. E.

⑴I like spring.It's always warm.____

⑵1like autumn.It's always cool.____

⑶1don't like winter.It's always cold.____

⑷I don't like summer.It's too hot.____

⑸We can play in the snow in winter.____

气候最主要的两大要素是（   ）

若多项式x²﹣mx﹣21可以分解为（x+3）（x﹣7），则m=____ 

阅读下面短文，从短文后所给的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。

    This is an apple tree. There are many 1 on the tree. There are some 2under it, too. They are 3 happily. Under the tree I can 4 a boy and a girl. They're playing games with the dogs.  The boy is 5 a blue sweater and white shoes. He is Jim. He is 6 American student. He is 14. He 7 his school very much. The girl is Jim's sister, 8 name is Cindy. She is 11. She is in a yellow dress. Her shoes are yellow. 9 . Now they are standing here, they are waiting for their friends. They 10 to play games under the tree.