小英按图甲所示的电路图连接实验电路,测量电阻R的阻值。闭合开关S,调节滑动变阻器

题型:实验题

问题:

小英按图甲所示的电路图连接实验电路,测量电阻R的阻值。闭合开关S,调节滑动变阻器的滑片P后,观察到电压表和电流表的示数分别如图乙、丙所示,则电压表的示数为        V,电阻R的阻值为         Ω。

考点:其他方法测电阻
题型:实验题

5月10日某投资者在芝加哥期货交易所以10点权利金买入执行价格为1 025点的看跌期权一份,同时以14点权利金卖出执行价格为1 035点的看涨期权一份。则到7月时的盈亏平衡点为( )点。

A.1 039
B.1 031
C.1 021
D.1 029

题型:实验题

血细胞包括______,______,______三种.

题型:实验题

在瓦楞纸箱设计中如何选择纸板楞向

题型:实验题

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 nickel(五分镍币).It was the first nickel 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 competition 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.

题型:实验题

某施工单位在某学院教学楼扩建项目施工中,为保证工程进度,拟在夜间进行连续施工作业,根据《环境噪声污染防治法》规定,必须满足以下()条件,方可进行。

A.取得县级以上人民政府或有关主管部门的证明

B.征得附近居民的同意

C.征得城管部门同意

D.公告附近居民

E.取得建设单位同意

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