题目

They have sold _______ the trousers ________ your size.    A. out ; in       B. off ; with       C. away ; of         D. on ; in 答案：A  下列实验操作正确的是A.稀释浓硫酸 B.量取稀盐酸C.倾倒液体 D.取用碳酸钠