人工拆除建筑的（）等构件，应与建筑结构整体拆除进度相配合，不得先行拆除。
A.栏杆
B.门窗
C.楼梯
D.屋面板
E.楼板
参考答案：A, C, E
4+4+4+4+4可写成5×4。 [ ]
When was ______ that the suggestion was put forward ______ the seven-day Labor Day Golden Week holiday be cancelled? [ ]
A. that; that
B. it; which
C. it; that
D. that; what
