天然气的供应方式包括（）。 A.常态天然气 B.LPG C.CNG D.LNG

数字图像是用数字阵列表示的图像，该阵列中的每一个元素称为像素，像素是组成数字图像的基本元素。数字图像是由有限个像素点组成的，构成数字图像的所有像素构成了矩阵。矩阵大小能表示构成一幅图像的像素数量多少。矩阵与像素大小的关系，可由下述公式表示：重建像素大小=视野大小／矩阵大小。当视野大小固定时，下列叙述正确的是（）

A.矩阵越大像素越小

B.矩阵越大像素越大

C.矩阵越小像素不变

D.矩阵越小像素越小

E.矩阵越大像素越少

住宅专项维修资金的使用须经( )同意。

A．房产管理部门

B．物业服务企业

C．业主委员会

D．业主大会

账务集中后大额支付往帐被拒冲账的操作流程？

阅读理解。

     In the United States, there are growing calls to do more to help young people learn skills in financial

education. Some efforts begin in high school. But more and more information is available on the Internet,

not only for young people but also for adults. The goal is to teach about saving, investing (投资) and using

money.

     The United States Financial Literacy and Education Commission was established in 2003. This

government group takes charge of financial education efforts through nineteen federal agencies. Information

on financial education can be found at its Web site. The address is MyMoney.gov. It includes links to

agencies that deal with banking, buying a home, investing and other areas.

     The National Council on Economic Education has found that seventeen states now require high school

students to take a class in economics. This number has grown from thirteen in 1998. As of three years ago,

half of all states required students to take a class in personal finance. Yet that number has fallen, from

twenty-five to twenty-two. The National Council on Economic Education sells textbooks for grades four

through twelve. It also offers free materials for teachers. The information is available at ncee.net.

     Teachers say parents also need to play a larger part in educating their children about money. A recent

study found that seventy percent of college students said they received financial advice mainly from their

parents. Investment companies also offer information. Charles Schwab, for example, has a Web site to help

parents teach their kids about money and investing. The address is SchwabMoneyWise.com.

     One of the first tastes of financial independence that many young people get is through summer jobs.

Junior Achievement is an organization that teaches young people about finance and business. It says almost

three-fourths of young people questioned said they planned to have a summer job.

1. If you want to get some financial information you can visit ______.

A. SchwabMoneWise.com

B. ncee.net

C. The National Council

D. MyMoney.gov

2. The third paragraph is mainly to tell us that ______.

A. all states asked students to learn economics

B. the number of the states has greatly reduced

C. students are required to take financial lessons

D. textbooks on economics sell well in America

3. Who is most likely to teach children about money?

A. The school teachers.

B. The parents.

C. The government.

D. The companies.

4. The children would like to have a summer job in order to ______.

A. join in Junior Achievement

B. receive more social experience

C. take part in more activities

D. learn more financial knowledge

换热器传热面积越大，传递的热量也越多。