题目

 The plane __________ two hours ago.     A. take off             B. took off             C. got off                     D. took up 答案： B                “宰相采用委员制……把相权分别操掌于几个部门，由许多人来共同负责，凡事经各部门之会议而决定。”材料描述的中国古代行政制度是A．皇帝制B．三省制C．行省制D．内阁制