I'm sorry to tell you that you can't make it up, because the course selection system shows that you have been absent. However, truancy does not mean that this course will fail, but it will lower the final grade (because the final grade is average). If you are still a good student and want to get high marks in scientific research, there are two remedies. First, after going to every experiment, you should write a preview report (that is, write more words, the teacher values the number of words, and the score of the preview report accounts for a large proportion), do a good job in data processing, and try to use electronic tools to draw a list; Second, choose to do open experiments (two more, at least two, one will probably get a few points) and virtual experiments (one will get more points). Finally, you must ensure that your experimental report is received by the teacher (pay attention to the results in the course selection system)