陈独秀说：中共“一大”时“党的要求——无产阶级专政实际上是悬在半空”，到中共“二大”时“就脚踏实地了……找到了中国实际的联系并决定了党要走的道路。”材料中陈独秀的评价主要着眼于中共“二大”  [ ]

A、制定了党的最高革命纲领

B、作出了加入 * * 国际的决定

C、作出了国共合作的决定

D、制定了党在民主革命时期的奋斗纲领

At a construction site in our city the workers have uncovered an ancient wall that_______ to keep the

enemy out of the city, but it requires further evidence. [ ]

A. might have functioned                              

B. would have functioned

C. must have functioned                              

D. should have functioned