【单选题】降低水中含盐量制取纯水及高纯水的处理过程称为( )。
【单选题】— Is this the new song _____ you like best? — No. But it's my sister's favorite. [ ]
【单选题】—Is this______ruler7 —No. It's______eraser. [ ]
【单选题】框图中,各数码与其填入的内容,不合适的是
【简答题】Eight kilometres is roughly _____ to five miles.(等于)
【单选题】—Is this your dress? —No. It’s ____.