在责任保险中，确定保险责任事故有效期间的方法被称为责任保险的（）。
A．承保基础
B．承保技术
C．承保方式
D．索赔时效
参考答案：A
用 award, reward 或 prize 填空。
1. He won the _____ for the best student of the year.
4 . A ____ was given to the person who had the winning number.
3. He received a medal as a( n) _____ forhis courage.
4. He was given a medal as a _____ for his service.
读1979-2010年中国西部大城市制造业企业迁移模式图，完成下列小题。
在这段时期，我国西部大城市在产业空间分布上工业集中程度最高的区域是（）
A.城市中心区
B.城市近郊内缘
C.城市远郊内缘
D.城市近郊外缘
