种群的季节性消长是种群对外界环境变化的______。
参考答案:适应
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.
The reader can post a letter to the newspaper. 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.
社会资源在一个国家或地区的配置状况称为( )。
A.产业政策B.产业构成C.产业发展水平D.产业间的技术经济联系