水是最常用的灭火剂，主要通过（）作用实施灭火。 A.冷却 B.化学抑制 C.窒息 D

统计用区划代码包括（）

A.省、地、县

B.省、地、县、乡

C.省、地、县、乡、居委会

D.省、地、县、乡、居委会和村委会

Adults（成年人）usually do not remember most of the things that are taught by their teachers at school. But this story is one such lesson that I will never forget. Every time I drift off course, I think of this story.

It was a normal Monday morning, and my teacher was teaching us on important things in life and about devoting ourselves to what is important to us. This is how the story went:

An old man lived in a certain part of London, and he would wake up every morning and go to the subway. He would get onto the train right to Central London, and then sit at the street corner and beg（乞讨）. He would do this every single day of his life. He sat at the same street corner and begged for almost 20 years.

His house was dirty, and a stench (恶臭) came out of the house and it smelled terrible. The neighbors could not stand the smell any more, so they called for the police officers to clear the place. The officers knocked down the door and cleaned the house. There were small bags of money all over the house that he had collected over the years.

The police counted the money, and they soon realized that the old man was a millionaire (百万富翁). They waited outside his house expecting to share the good news with him. When the old man arrived home that evening, one of the officers told him that there was no need for him to beg any more as he was a rich man now, a millionaire.

But the old man said nothing at all; he went into his house and locked the door. The next morning he woke up as usual, went to the subway, sat at the street corner and continued to beg.

Clearly, this old man had no great plans, dreams or anything significant (有意义的) for his life. We learn nothing from this story other than（除了）staying focused on（专心于）the things we enjoy doing.

小题1:The underlined part in the first paragraph may mean ______.

A．I get tired of learning my subjects

B．I fail to listen to lessons attentively

C．I go in the wrong direction of life

D．I wouldn’t like to go to school小题2:The neighbor called the police because ______.

A．the old man kept begging money from them every day

B．there was something dangerous in the old man’s house

C．the old man wouldn’t buy tickets for the train

D．they couldn’t bear the smell from the old man’s house小题3:When the old man knew he was a millionaire, he ______.

A．remained calm

B．became excited

C．felt worried

D．became nervous小题4:What lesson do we learn from the story?

A．Make great plans for your life.

B．Keep on doing what you like.

C．Do something that is good to society.

D．Depend on yourself rather than others.

影响公共政策执行的因素有哪些？

诊断牙髓坏死，最主要的临床检查是（）

A.视诊

B.温度测验

C.光纤透照测验

D.开髓后诊断

E.电活力测验

检查软件产品是否符合需求定义的过程称为( )。

A．确认测试
B．集成测试
C．验证测试
D．验收测试