How do I know if I subscribed Plus? It doesn't show me ads when I go through things, but when I go to the subscription setting page, it just asks me to update my payment information to subscribe Plus and it shows me my free trial is already expired. But I don't see ads when I click into a question though. I thought I suppose to see ads if I don't have Plus. But I don't see ads, and it asks me to update my payment methods to start subscribing Plus.

Greg goes to a high school and observes the way students talk to each other. he makes notes on the words used, the atmosphere of the school and the way the students present themselves to each other. this is an example of a( research method.

How have the changes in china's laws affected its economy?

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.