摄氏温标在科学工作中常用。
The Celsius ___scale is commonly used in scientific work.
请用1到10的等级来评价您的满意度。
Please rate your satisfaction on a ___scale of 1 to 10.
政府提出了一套基于收入的新税率等级。
The government proposed a new ___scale of taxes based on income.