民族压迫政策的具体表现是( )
A．民族团结
B．民族独立
C．民族同化
D．民族融合
参考答案：C
Is _____ some German friends visited last week? [ ]
A. this school where
B. this school one
C. this the school
D. this school
某220kV屋外变电所的两台主变压器间不设防火墙，其挡油设施大于变压器外廓每边各1米，则挡油设施的最小间距是下列哪一值？
A．5m
B．6m
C．8m
D．10m
