不能确定两个三角形全等的条件是( )
A:三边对应相等
B:两边及其夹角相等
C:两角和任一边对应相等
D:三个角对应相等
如图,D,E,F分别是△ABC各边的中点,下列说法中错误的是( )
—The man at the gate _______ be our headmaster. He is always standing there every morning.
—No, it _______ be him. He is holding a meeting in the office now.
如图,一次函数y=mx+4的图象与x轴相交于点A,与反比例函数y=kxx>0的图象相交于点B(1,6).
(1)求一次函数和反比例函数的解析式;
(2)设点P是x轴上一点,若S△APB=18,直接写出点P的坐标.