阿摩線上測驗
18. The Franklin stove, which became common in the 1790s, burned wood __________ an open
fireplace.
(A) efficiently much more than
(B) much more efficiently than
(C) much more than efficiently
(D) more efficiently much than
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統計： A(32), B(349), C(4), D(5), E(0) #1613394
統計： A(32), B(349), C(4), D(5), E(0) #1613394
