問題詳情
18. The Franklin stove, which became common in the 1790s, burned wood __________ an openfireplace.
(A) efficiently much more than
(B) much more efficiently than
(C) much more than efficiently
(D) more efficiently much than
參考答案
答案：B
難度：簡單0.75
統計：A(3),B(15),C(1),D(1),E(0)