sat答案每日一题附答案息争析数学2020年1月19日

• 第 1 页：每日一题
• 第 2 页：答案息争析

Read the following SAT test question and then click on a button to select your answer.

The graph at left models the monthly bill, m, in dollars, that a particular video hosting company charges a customer who uses t terabytes of bandwidth. What is the best interpretation of the average rate of change between 10 and 35 terabytes in this context?

(A) The average amount the company charges each month is about $ 91 per terabyte up to the tenth terabyte.
(B) The average amount the company charges each month is about $ 110 per terabyte up to the tenth terabyte.
(C) The average amount the company charges each month is about $ 91 per terabyte after the tenth terabyte but before the thirty-fifth.
(D) The average amount the company charges each month is about $ 110 per terabyte after the tenth terabyte but before the thirty-fifth.

来源:可可英语 http://www.esmo.cn/kekenet3564/sat/202001/603833.shtml