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Analysis: (1)A? d? c? e? A circle lasts 2 hours, two scenic spots rest 1 hour, and walk 1 hour.

4×1-1.3-1.1-1= 0.6 (km)

A: The distance of ce is 0.6 km.

(2) Take ADCBEA with the shortest distance and shortest time:

( 1.3+ 1+ 1.2+0.4+ 1. 1)÷4

=5÷4

= 1.25 (hours)

Answer: The shortest time to see the three scenic spots is 1.25 hours.