A:抗击倭寇
B:抗击金军
C:收复台湾
D:出击匈奴
—Did you have a good time in Thailand last year?
—________. It was too hot.
设集合U={1,2,3,4,5},A={1,2,3},则∁UA=( )
如图,直线a∥b,直线c是截线,如果∠1=50°,那么∠2等于( )