一Long time no see!
— Oh, it ____________ like years since I last saw you.
A:looks
B:seems
C:feels
黄土高原植被遭到破坏的多种方式中,最为严重的是( )
如图,△ABC中,∠ACB=90°,CD⊥AB于点D,若BD:AD=1:4,则tan∠BCD的值是( )