题目

The number of registered participants in this year’d marathon was half        ．    A．of last year’s                            B．those of last year’s     C．that of last year’s                      D．of those of last year 答案：C13．小明同学想了解我国一处原始居民文化遗址，从网上查阅了：“粟”、“蔬菜”、“彩陶”等相关内容。此文化遗址最有能位于今天（　　）A．云南元谋B．北京周口店C．陕西半坡D．浙江余姚