lose face be famous for turn one's back to pick out badly off cut off in general
下列运算过程中有错误的个数是( )
3-412×2=3-412×2;(2)﹣4×(﹣7)×(﹣125)=﹣(4×125×7);91819×15=10-119×15150-1519;(4)3×(﹣2)×(﹣5)=3×2×5.
如图所示,E,D是AB,AC上的两点,BD,CE交于点O,且AB=AC,使△ACE≌△ABD,你补充的条件是____