6. The invention of the steam engine, which was used to power heavy machines, brought about a _____
change in society.
(A) persuasive
(B) harmonious
(C) conventional
(D) revolutionary
詳解 (共 2 筆)
未解鎖
(A) persuasive 有說服力的...
未解鎖
看到蒸汽機(steam engine)，...
私人筆記 (共 1 筆)
未解鎖
答案：(D) revolutionary...
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