A:How was your summer holiday?
B:How was your New—Year holiday?
C:How was your winter holiday?
山脉是地形区之间的分界线,下列数字所在的地形区正确的( )
Look at the elephant.
治理日益严重的雾霾天气,是国家和企业的责任,公民个人无能为力。( )