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A complete cycle through all sleep stages takes approximately:

dt00108842

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6 years ago

A complete cycle through all sleep stages takes approximately:

A complete cycle through all sleep stages takes approximately:

a. 30 minutes
b. 60 minutes
c. 90 minutes
d. 120 minutes

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LittleMarc

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dt00108842 Author

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6 years ago

Thanks

SlimyPencil

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this is exactly what I needed

kater28

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You make an excellent tutor!

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