A:am; can save; dead
B:was; can save; death
C:were; could save; dying
D:were; could save; died
如果角θ的终边经过点 (−32,12) ,那么tanθ的值是( )
下列哪一部绘画作品,描绘了北宋东京汴河沿岸的风光和美景?( )
下列各项中不属于生物共同进化实例的是( )