分解因式:2x2﹣4x=____.
如图,已知△ABC中,AB= AC,∠ABC=70°,点I是△ABC的内心,则∠BIC的度数为( )
已知集合A=x|x<3,B=x|log2x>0则A∩B=( )
A. goes B. to C.across D. see E. of