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OpenStudy (anonymous):
A student is asked to write an essay about recent changes in cell phone usage. A good research question would be: Select one: a. Where were cell phones used the most last year? b. Who uses cell phones the most today as compared to the past five years? c. How much does a cell phone plan cost? d. Can cell phone usage increase the risk for certain diseases?
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OpenStudy (anonymous):
would it be B ? @paki
OpenStudy (anonymous):
it was b
OpenStudy (paki):
may be B, but i have no idea of this one...
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