There are many famous ____ (direct) in China, such as Zhang Yimou, Chen Kaige and so on.
抛物线y=x2在点M(12,14)处的切线的倾斜角是( )
中国航天人积极践行中华民族精神,攻坚克难、无私奉献,取得了举世瞩目的成就,直接说明中华民族精神( )