When carrying out such exercises, students are actively involved in the learning process and they receive constant ( ) about their progress. ( 章节：4 难度：2)_做题室

单项选择题When carrying out such exercises, students are actively involved in the learning process and they receive constant ( ) about their progress. ( 章节：4 难度：2): A、edition; B、discount; C、feedback; D、freight

正确答案：C
答案解析：
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