information about GRE math sub and general?

题目

information about GRE math sub and general?
please tell me the concrete information about the relationship between gre general and sub.
in term of the math sub,is it specialized for the math-major shtudent or non math-major students.
now i am learning the mechanical engeneering at a top20 ranked key universty in china.for oversees study with a high scholorship offer.i decided to transfer may major to fundamental or applicational mathematics phd.
now i want to know.when applying for another major if itis necessary to submit the gre sub score.as for me ,must i take in the gre math sub?
and when i passt the top10% of gre math sub,must i also take part in the general exam?
please tell me sth about the gre sub ,the links to the real paper in better.
thank you a lot.

答案

browse on the official website of the univ that you would want to apply to,don't bother to take the gre sub if it's not required or recommended