Yes According to official website, an academic reference network, doctoral dissertations are randomly sampled by the office of the Academic Degrees Committee of the State Council, and doctoral dissertations of all schools are out of order and sampled at any time. Therefore, if a doctoral thesis gets a C, it will be sampled. Spot check of doctoral dissertations is an inspection and spot check of doctoral dissertations in colleges and universities, with the purpose of ensuring academic norms and quality.