工程量按面积以平方米为计量单位计算的有下面( )。
A．砖砌散水B．现浇混凝土板后浇带C．现浇混凝土雨篷D．现浇混凝土天沟
参考答案：A
The letters for the boss ________ on his desk but he didn't read them until three days later.[ ]
A. were put
B. was put
C. put
D. has put
《清文献通考》记载：清政府对边疆民族实行“因其教不易其俗，齐其政不易其宜”政策，为实施该政策，清政府在中央设置的边疆民族管理机构是（）
A.军机处
B.理藩院
C.宣政院
D. * * 衙门
