—No, but I see ________ monkeys in it.
A:some; any
B:any; some
C:any; any
已知点A是圆C:x2+y2+ax+4y+30=0上任意一点,A关于直线x+2y﹣1=0的对称点也在圆C上,则实数a的值( )
A.镁 B.氧气 C.氮气 D.红磷 E.氢氧化钙 F.大理石
能使带火星的木条复燃的是( )