给下面带下划线的字注音。
东南坼 ____ 乾坤 ____ 戎马 ____ 凭轩 ____ 涕泗 ____
I have a good friend.She is a beautiful girl.She is lovely.She has two big eyes and she's thin.Her favourite colour is red.She likes wearing(穿着)a red dress.She can sing and dance.We often(经常)play together.
读20元人民币版面图案,该图案所示为我国的桂林山水,该地形景观的主要成因是( )