快放暑假了,宁宁可以这样安排她积攒已久的零用钱( )

①先作出计划,把钱花在关键的地方

②买些一次性的餐具以备野餐时使用

③买一件和同学一样的名牌衣服

④买一本励志的故事书充实自己

给下列句子编号。

Kate:  Look, Mary! A girl is over there. Can you see her?

Mary:  Which girl?

Kate:  The one in the red coat under the apple tree. Do you know her?

Mary:  That's Lily. Lily, how are you?

Lily:   Very well, thank you, and you?

Mary:  I'm fine too. This is my friend, Kate.

Lily:   Nice to meet you, Kate.

Kate:  Nice to meet you too.

A. That's Lily. Lily, how are you?

B. Which girl?

C. Look, Mary! A girl is over there. Can you see her?

D .The one in the red coat under the apple tree. Do you know her?

E. Very well, thank you, and you?

F. Nice to meet you, Kate.

G. I'm fine too. This is my friend, Kate.

H. Nice to meet you too.

____

2014年12月12日，南水北调中线工程正式通水，整个项目年均调水量为95亿立方米，相当于$\frac{1}{6}$条黄河．有人说，“南水”还是不能从根本上解“北渴”．你认为支持该观点的理由主要是（ ）

已知$\alpha$是第四象限角，且$\cos \frac{\pi }{2}>0$，则$\frac{\alpha }{2}$所在的象限是（  ）