0
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0answers
28 views

is it good to study more than one subjects the same day?

I have personally never been able to do that! by saying "study" I don't mean doing "home work" or reading a book; I mean research. for example: trying to solve a difficult mathematical problem in ...
9
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3answers
6k views

Why do people laugh in serious situations?

I've seen people (including myself) that laugh for no apparent reason in really serious situations, such as in an argument or when receiving bad news. Although the other party is clearly very upset, ...