—What do you have?
—
A:I like hot dogs.
B:I have hot dogs.
C:Here you are.
若a>b,则下列不等式中变形正确的是( )
如图,在△ABC中,∠B=30°,BC的垂直平分线交AB于E,垂足为D.如果CE=10,则ED的长为( )