【单选题】曲流河沉积可以划分为()
A.
心滩亚相、天然堤岩相、决口扇亚相、泛滥平亚相
B.
边滩亚相、天然堤岩相、决口扇亚相、泛滥平亚相
【简答题】简析《登高》中杜甫登高抒怀伤时忧国之情。
【单选题】A qualified doctor has to constantly update his knowledge in order to maintain his professional _____.
【单选题】Teachers have to constantly update their knowledge in order to maintain their professional ___.
【单选题】Teachers have to constantly update their knowledge in order to maintain their professional(专业的)_______.