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討論串[計量] Diane completed each of her ...
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P,Q and R are distinct points on a straight line, with Q between P and R, S isa point NOT on the line, and QR=QS. PR PS. Ans.A. Diane completed each o
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Diane completed each of her exercise sets in 75 seconds and rested for 55 secbetween the exercise sets. What is the ration of the amount of time it to
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