Depends upon the program. Most programs do not require the experience. Although experience in the Industry
+point. However not mandatory, you can have research and publication experience, which you can add by working for firm.
Also i would suggest you to have look of PhD threads posted in the forums, will of help. Again go to FT rankings 2014, guide how to choose your program. Also ask yourself about the research interest you have and search for the author or publications then follow the Professor to University; its simple.
A score of 700 is good to apply for the PhD program.
Thanks for Posting
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+1 kudos if you like