1÷[(1-0.99)÷0.1]=____
我国在社会主义探索过程中出现的严重失误有( )
根据短文,选择正确答案。
Van and Ted are twin brothers. They look the same. They are English. They are eleven. They are in No.15 Middle School. They are new students in Class One, Grade One. Van sits in Row One. Ted sits in Row Three.