There are similarities between a journal research article and a graduation paper. They are similar in the following aspects except for:

A、Theycanbebothfocusingonsomeunknownproblems.;
B、Theycanbebothprimaryresearch.;
C、Theycanbebothwrittenbyoneresearcher.;
D、Theycanbewrittenbothbyuniversitystudents.