A:What’s u
B:Who does he think he i
C:Does he have anyone in mind
D:Does he have anything on his mind
有下列四个命题:①相等的角是对顶角;②两条直线被第三条直线所截,同位角相等;③对顶角相等.其中是假命题的个数有 ( )
在萝卜、大豆、玉米、白菜四中植物中,将萝卜和白菜划为一类,是因为( )
把甲、乙两盏灯按一定方式连接到电源上,用电流表分别测出通过甲、乙两灯的电流为0.28 A和0.34 A,则甲、乙两灯的连接方式为( )