1.  Enterprise rs, study from him to earn more and consumers can benefit more from the superior products .

2.  In an essay whose title is "Analysis of Frequency of Tests and Varying Feedback Delays in College Mathematics Achievement" written by Townsent neal R and Wheatley Grayson H, the authors tell us about the experiment: Sixteen beginning analytic geometry and calculus classes (442 students) followed eight testing regimes for one academic quarter.

3.  R: I know that you has worked in the DMP and my question is why is this project necessary?

4.  R: I heard that this project cost a large sum of money, and do you think it worth so much money?

5.  R: Thank you for receive my interview.

6.  R: Goodbye, Mr. Levoy.

7.  Reporter--R, Marc Levoy--M\

8.  R: reporter L: Marc Levoy\