乙醇俗称酒精，其化学式为C2H5OH，请根据要求回答下列问题：请完成酒精在空气中

小华准备将平时的零用钱节约一些储存起来，他已存有62元，从现在起每个月存12元；小华的同学小丽以前没有存过零用钱，听到小华在存零用钱，表示从现在起每个月存20元，争取超过小华．

（1）试写出小华的存款总数y₁与从现在开始的月数x之间的函数关系式以及小丽存款数y₂与月数x之间的函数关系式；

（2）从第几个月开始小丽的存款数可以超过小华？

低速离心机的主要构成包括（）

A.电动机

B.离心转盘（转头）

C.调速装置

D.离心套管

E.真空装置

—I am often ill.

—______ [ ]

A. I think so.

B. That's OK.

C. Really? Thank you.

D. I am sorry to hear that.

阅读理解。

Hi, Antonio,

     I read your blog and guess what? Now I have a summer job with my neighbor moving their lawn and

doing work around their house and I am getting paid. I do the same work at my house but the pay is better

at the neighbor's. Have a great summer, man! 

                                                                                                                                Posted by: Jack

Dear Antonio,

     My son is 15 and he has been begging for a summer job. Do you know of any place that hires children

of that age?

                                                                                                                             Posted by: Vallery

Hi, Antonio,

     I am 13 years old and trying to earn money to take a trip with my chorus to Hawaii. I am willing to do

any work at any hour during the summer.

                                                                                                                     Posted by Ashley Jordan

Hi, Antonio,

     I am 19 years old, a college student and I am looking for a summer job. Does anyone know somewhere

that is hiring? I have been looking for two weeks now.

                                                                                                                         Posted by: Erica Allen

Dear Antonio,

     My daughter is working in the file room at the law firm I work for and I am very happy that we were

able to get her on. My concern is that she wouldn't have got the summer job if I had not "known" people.

What about kids whose parents do not know someone?

                                                                                                                             Posted by: Tracy

Hi, Antonio,

     I found my summer job on my own and my parents are so proud of me because I did it on my own.

That is why the world needs teens who can take responsibility for themselves and grow into mature and

wise adults. Can't wait for your next blog. I enjoy your writing. You have a great point of view.

                                                                                                                                Posted by: Jeff

1. What may be the topic of Antonio's blog this time?

A. A great summer.

B. Getting a summer job.

C. An ideal career.

D. Entering a profession.

2. From the above posts we learn that _____.

A. Jack gets paid for cutting and moving the lawn for his own family

B. Valley has been begging in streets over the summer

C. Erica is quite experienced in finding part-time jobs

D. Ashley is willing to do any part-time job during his trip to Hawaii

3. What do we know about Tracy from her post?

A. She works in a file room.

B. She helped her daughter to become a lawyer.

C. She's proud that she helped her daughter find a job.

D. She thinks children should take responsibility for themselves.

4. Where can we find the text most probably?

 A. In a book.

B. In a report.

C. On the Internet.

D. In a bulletin (公告).

对公存款周计划以（）为最低存款起存金额，即系统自动转入存款明细账户的金额单笔最低为（），且为100万元的整数倍。

A.1000万元

B.100万元

C.200万元

D.500万元