both can be used
1st means now
it's no use to give the patient any medicine, bcz he died minutes ago.
2nd means always
it's no use crying over the spilt milk.
it's no use talking to him, he never listens to advice.
2010年5月17日
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Both are correct. The second is more used than the first one though. It probably also depends what type of English you're speaking since certain places speak English differently. American English(what I speak) is slightly different from British English is slightly different from Australian English, etc.
2010年5月18日
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2 is more correct. 1 is grammatically correct, however, not used in everyday language.