题目

All the villagers             the fight against the big flood,            young and old, men and women.     A. joined; including                        B. joined in; containing     C. joined in; including                      D. joined; containing   答案：C将1．92g铜粉与一定量浓硝酸反应，当铜粉完全作用时，收集到气体1．12L（标准状况），则所消耗硝酸的物质的量为 A．0．12mol       B．0．11mol        C．0．09mol         D．0．08mol