Li Ming, ______ to the concert enjoyed it very much.
A:I went with
B:with whom I went
C:with who I went
D:I went with him
函数y=x2+2x|x|的图象为( )
1.73÷0.9的商一定____1.73.
已知集合A={x|x2-2x<0} ,B={x|x⩽-1或x>1} ,则A∩(CRB)=( )