What is commonly regarded as the cause of grade inflation? ( )

(单选题)In David Eagleman's opinion, our current knowledge of consci (单选题)Mary Shelley’ s novel Frankenstein is mentioned because it ( (单选题)The author examines the practice of grade forgiveness by ( (单选题)What does the phrase “to be aligned” (Line 5, Para.6) most p (单选题)According to Paragraph 5, grade forgiveness enable colleges (单选题)What was the original purpose of grade forgiveness? ( ) (单选题)What is commonly regarded as the cause of grade inflation? ( (单选题)能够从上述材料中推出的是（ ）。 (单选题)2017全国内河航道里程较2013年增长（ ）。 (单选题)2014—2017年全国内河航道里程平均约为多少万公里？（ ）