阿摩線上測驗
44. What are the main characteristics of orcas?
(A) aquatic, huge, and violent
(B) terrestrial, giant, and mild
(C)amphibious, massive, and tender
(D)aerial, enormous, but gentle
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統計： A(225), B(37), C(21), D(18), E(0) #1589910
統計： A(225), B(37), C(21), D(18), E(0) #1589910
