中国古代的建筑、水利工程和科技发明，凝聚了劳动人民的心血和汗水，至今仍发挥着巨大实际效用的是[ ]
A．大运河
B．故宫
C．长城
D．地动仪
答案：A
The crowd cheered wildly at the sight of Liu Xiang, who was reported ____ the world record in the 110-meter hurdle race.
A．breaking
B．having broken
C．to have broken
D．to break
基层幼教行政部门的职责是什么？
