25.Combines and self-binding reapers were
similar because each
(A) could perform more than one function
(B) required relatively little power to operate
(C) was utilized mainly in California
(D) required two people to operate
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統計: A(2), B(0), C(1), D(0), E(0) #802297
統計: A(2), B(0), C(1), D(0), E(0) #802297