2. The remarkable survival rate of insects is due to _______ which makes them
invisible to predators.
(A) camouflage
(B) adrenaline
(C) dehydration
(D) malnutrition
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統計: A(58), B(1), C(4), D(3), E(0) #3247797
統計: A(58), B(1), C(4), D(3), E(0) #3247797