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.