73. Why might a Russian tortoise struggle to survive in Maine?
(A) It requires a fully aquatic environment.
(B) It needs a pond to swim in, which Maine lacks.
(C) It prefers small indoor enclosures.
(D) It cannot survive in cold and humid conditions.
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統計: A(1), B(0), C(0), D(10), E(0) #3578142
統計: A(1), B(0), C(0), D(10), E(0) #3578142