科目: 來(lái)源: 題型:055
寫(xiě)出下列單詞或詞組的正確形式
An English engineer drove the first ________ ________
(蒸汽機(jī)火車(chē))on a road.查看答案和解析>>
科目: 來(lái)源: 題型:055
寫(xiě)出下列單詞或詞組的正確形式
One of them had a way to ________ steam engines and wheels ________
(把……連在一起).查看答案和解析>>
科目: 來(lái)源: 題型:055
寫(xiě)出下列單詞或詞組的正確形式
In the 1700s, many scientists were ________ ________
(從事于)the steam engine.查看答案和解析>>
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