33. Which of the following advantages of Geofiber slopes is NOT mentioned?
(A) Geofiber slopes are strong.
(B) Geofiber slopes are cheap in construction.
(C) Geofiber slopes sustain vegetation.
(D) Geofiber slopes support wildlife.
(E) Geofiber slopes are environmentally-friendly.
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統計: A(0), B(78), C(7), D(1), E(2) #1985519
統計: A(0), B(78), C(7), D(1), E(2) #1985519