大气环境影响评价工作等级是如何划分的？并给出各级评价的范围？

阅读理解。

     A group of frogs were traveling through the forests, but unluckily two of them fell into a hole. The

other frogs tried to help them. When they saw how deep the hole was, they cried to the two frogs,"We

can't save you."The two frogs didn't care and tried their best to jump up out of the hole. The other frogs

kept saying that they were sure to die. Finally, one of the two frogs gave up, because he heard what the

others were saying. Then he fell down and died. The other one, however, continued to jump as hard as

he could, and at last he succeeded. When he got out, the other frogs asked, "Didn't you hear us?" The

frog, who had a poor hearing, explained, "I thought you were encouraging me all the time."

The story teaches us: There is power of life and death in the tongue. An encouraging word to those who

are down can help them out while a discouraging word can kill them.

     While a group of frogs were traveling through the forests, two of them fell into a deep

(1) ______. The other frogs had no ways to save them. They kept saying that the two frogs were sure

to die. Hearing this, one of the two frogs (2) ______ and died. But the other one tried to jump as hard

as (3) ______ and succeeded. Because there was something wrong with his ears, he thought the others

were encouraging him. The story tells us when a person is in (4) ______, we should (5) ______him

instead of discouraging him.

2011年4月4日宁波晚报报讯（一等功臣钱建阳女儿钱瑜撰文忆父亲）：一次意外，让爸爸永远地离开了我们。您一定也在遥远的地方想念着我和妈妈。我知道并理解，您是为了工作而离开的，我不怪您。在我心里，您永远是一个好警察，我的好爸爸，妈妈的好丈夫。现在的我已有1．72的身高了，我会替你好好照顾妈妈，我长大了。文中的“我”对长大的理解是[     ]

①年龄增长了

②身体长高了

③能自觉承担照顾妈妈的责任了

④能自立自强了

A．①②

B．②③④

C．①④

D．①③④

某超市出售一种方便面，原价为每箱24元。现有三种调价方案：方案一，先提价20%，降价20%；方案二，先降价20%，再提价20%；方案三，先提价15%，再降价15%。三种调价方案中，最终价格最高的是（      ）。

什么是用水定额？

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