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July 5, 2015

Homework Help: English

Posted by rfvv on Monday, October 28, 2013 at 5:53am.

1. Research projects that have won Ig Nobel Prizes are real, serious scientific work.

2. Research projects that have ever won Ig Nobel Prizes are real, serious scientific work.

(Does #1 mean #2? What is the meaning of 'have won'? Does 'have won' mean 'experience in the past?)

3. Research projects that won Ig Nobel Prizes are real, serious scientific work.

(What about this sentence? Only 'won', the past tense' is used. What is the difference between #3 and #1?)

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