—How long have you __________ here?
—For two days. I __________ here the day before yesterday.
A:been; came
B:come, came
C:came; came
D:come, was
已知集合A={x|x2﹣x﹣2≤0},B={x|y=ln(1﹣x)},则A∩B=( )
唐代文学家柳宗元说:“周之失,在于制;秦之失,在于政,不在制”。柳宗元对于周秦之失的评价