A：①③④
B：①②④
C：②③④
D：①②③④
一代伟人***在《沁园春·雪》中写到：“北国风光，千里冰封，万里雪飘”，形成这种自然景象的主要物态变化是
Ann is 1 American worker. She works2a big factory(工厂) in America. It's 3in the morning. Ann 4 up. She is sitting on the bed. She is putting 5her clothes. She 6nothing to do today. Now Ann 7 at the table. She is 8 her breakfast. There is a cup of orange and some bread on the table. Ann is 9 the orange and eating the bread. She is 10today's newspaper.
分式方程2x-2-1x=0的根是（ ）
