To Our Readers (读者)
Welcome to the New Century. We have changed many parts of our New Century. Photos are bigger. So you can enjoy the beautiful flowers and clothes better than before. There is more sports news. So you can know more information about sports. There is also a new column (栏目) of English learning and teaching. We are sure it will help you to learn and teach English better. We believe you will find it more intere sting when you read it.
In the six years since its founding (成立) in 1994, New Century has become the best English language newspaper (报纸) in our province. Here we want to give our thanks to Mr. Johnson for his help in the past years.

There are some photos of animals in the newspaper of New Century.
A. Right.B. Wrong. C. Doesn’t say.

As you know, we have tried our best to develop a modern English language newspaper in our province. We’ve done well. We believe we can do better in the future. We hope you will find our New Century even more interesting. Please write to us and let us know what you think of it. We welcome your suggestions.

图18-1-1所示结构受一对大小相等、转向相反的力偶作用，铰支座A的反力RA的作用线应该是（）。

A．R_A沿A、B连线

B．R_A沿A、C连线

C．R_A沿直线

D．无法判断