— Listen! Who ____ (sing)in the next room?
— It's Miss Brown,
已知全集U=R,集合A={x|x>0},B={x|﹣1<x≤2},求:
(1)A∩B;
(2)A∩∁UB.
如图,沿直线AD折叠,△ACD与△ABD重合,若∠B=58°,则∠CAD= ____度.
-- you a clock in your bedroom?
-- No, I don't.