简述水质采样注意事项。

若有定义：int a=10，b=8，c=4；然后顺序执行下列语句后，变量a中的值是______。
c=(b-=(a-4))；a=(c%2)+(b-1)；

I began working in journalism（新闻工作）when I was eight. It was my mother’s idea. She wanted me to “make something” of myself, and decided I had better start young if I was to have any chance of keeping up with the competition.

With my load of magazines I headed toward Belleville Avenue. The crowds were there. There were two gas stations on the corner of Belleville and Union. For several hours I made myself highly visible, making sure everyone could see me and the heavy black letters on the bag that said THE SATURDAY EVENING POST. When it was suppertime, I walked back home.

“ How many did you sell, my boy?” my mother asked.

“ None.”

“ Where did you go?”

“ The corner of Belleville and Union Avenues.”

“ What did you do?”

“ Stood on the corner waiting for somebody to buy a Saturday Evening Post.”

“ You just stood there?”

“ Didn’t sell a single one.”

“ My God, Russell!”

Uncle Allen put in, “ Well, I’ve decided to take the Post.” I handed him a copy and he paid me a nickle（五分镍币）. It was the first nickle I earned.

Afterwards my mother taught me how to be a salesman. I would have to ring doorbells, address adults with self-confidence（自信）, and persuade them by saying that no one, no matter how poor, could afford to be without the Saturday Evening Post in the home.

One day, I told my mother I’d changed my mind. I didn’t want to make a success in the magazine business.

“ If you think you can change your mind like this,” she replied, “ you’ll become a good-for-nothing.” She insisted that, as soon as school was over, I should start ringing doorbells, selling magazines. Whenever I said no, she would scold me.

My mother and I had fought this battle almost as long as I could remember. My mother, dissatisfied with my father’s plain workman’s life, determined that I would not grow up like him and his people. But never did she expect that, forty years later, such a successful journalist as me would go back to her husband’s people for true life and love.

小题1:Why did the boy start his job young?

A．He wanted to be famous in the future.

B．The job was quite easy for him.

C．His mother had high hopes for him.

D．The competiton for the job was fierce.小题2:From the dialogue between the boy and his mother, we learn that the mother was _______.

A．excited

B．interested

C．ashamed

D．disappointed(失望的)小题3:What did the mother do when the boy wanted to give up?

A．She forced him to continue.

B．She punished him.

C．She gave him some money.

D．She changed her plan.小题4:What does the underlined phrase “this battle”（last paragraph） refer to?

A．The war between the boy’s parents.　

B．The arguing between the boy and his mother.

C．The quarrel between the boy and his customers.　

D．The fight between the boy and his father.小题5:What is the text mainly about?

A．The early life of a journalist.

B．The early success of a journalist.

C．The happy childhood of the writer.

D．The important role of the writer in his family.

已知某生产办公用品的工厂2005年1—8月份的产量如下所示，试根据所给数据预测7、8月份的产量。(单位：万套；移动期n=4；赋予最近一期观察值的权数为3，其余三期为2、2、1)

月份	1	2	3	4	5	6	7	8
产量	12	14	16	15	12	16	18	20

炙甘草在炙甘草汤中的作用为

A．缓急止痛
B．补益心气
C．调和脾胃
D．滋养心阴
E．缓和药性

根据以下数据资料，分析相关问题：
(单位：万元)

资金运用项目	上日末余额	资金来源项目	上日末余额
一、各项贷款 二、在中央银行准备金存款 其中：法定准备金存款 三、业务库存现金 四、同业往来 其中：到期应收	6700 750 470 100 480 150	一、各项存款 二、同业往来 其中：到期应付	4500 1500 300

假设该行超额准备金留存限额为100万元；业务库存现金限额40万元；可调入资金300万元；现金收入超过现金支出的差额25万元；联行应付大于应收的汇差为50万元；同城票据清算应收资金15万元；到期的其他金融机构拆入差额38万元；发放贷款100万元；收回贷款60万元(其中本行客户30万元)。

下列引起该银行可用头寸减少的因素有( )。

A．存款户提取现金

B．上级行调走资金

C．从中央银行借款

D．同业拆出资金