50. When hiking or backpacking without a GPS device, the most reliable and accurate way to locate yourself is triangulation. Triangulation on a map can be used to
(A) measure distances between two locations.
(B) identify your location using three prominent features.
(C) determine North when using the sun’s movement and a stick.
(D) remember the levels in Maslow’s hierarchy.

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統計： A(9), B(30), C(7), D(1), E(0) #2929285