阿摩線上測驗
41. What is the main idea of this passage?
(A) Native Americans relied on trees for their existence.
(B)Native Americans used great ingenuity to cut down trees.
(C)Native Americans knew how to build fires.
(D)Native Americans discovered iron.
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統計： A(18), B(57), C(6), D(5), E(0) #1782087
統計： A(18), B(57), C(6), D(5), E(0) #1782087
