7×____=35
6×____=42
①接受九年义务教育 ②劳动 ③服兵役 ④赡养扶助父母
家住赣州的小明,寒假想去北京到姑姑家做客,他乘坐的直达火车是沿着哪一条铁路干线( )
— Nowadays more and more foreigners are becoming interested in Beijing Opera.
—That's true. It's an important part of Chinese____________.
血液属于哪种组织( )