【判断题】待测金属离子M、N与EDTA生成配合物lgKMY—lgKNY<5,可以用控制酸度的方法分别进行测定。< /div>
【单选题】-Who is that girl over there? Is it your sister? -No, it _______be her. She is much taller. [ ]
【单选题】Joan and Jane are twins,but they have few interests() .
【单选题】—Jane wash’t in when Jack came,was she? —________,but she returned a few minutes later.
【单选题】配合的种类有间隙配合、过盈配合、()三种。
【单选题】My sister’s dream is to have her own shop ____ she can make her favourite cakes.