解答 答案:C.discover 是发现本来就存在的事物.America本身就在,故用discovered,invent是发明创造出一个原本没有的新事物.light bulbs是发明创造出来的,故invented.故选C. 点评 discover 是发现本来就存在的事物.例如:discover the islandinvent是发明创造出一个原本没有的新事物.invent the steam engine.练习...
1Franklin ___ electricity,and Edison ___ the light bulb. A. discovered,discovered B. invented,invented C. discovered,invented 2Franklin ___ electricity,and Edison ___ the light bulb.A. discovered,discovered B. invented,invented C. discovered,invented 3【题文】Franklin ___ electricity, an...
百度试题 结果1 题目I can' t imagine living light bulbs. A. without B. with C. for D. between 相关知识点: 试题来源: 解析 L 反馈 收藏
Geracimos, Ann
Both light bulbs A and B light up at the same time. After that, light bulb A lights up every 6 minutes and light bulb B lights up every 8 minutes. When will both light bulbs A and B next light up together?相关知识点: 试题来源: 解析 24min. N/A.反馈 收藏 ...
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Light bulbs are widely ___ people today. A. used by B. using by C. used of D. used to 相关知识点: 试题来源: 解析 A 【详解】句意:灯泡被人们广泛的使用。考查被动语态和介词词义辨析。by被,由;of的;to去。主语“Light bulbs”和所给谓语动词“ use”构成动宾关系,应用被动语态,其构成为“be...
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解析 1.A【答案解析】句意:如今,灯泡被人们广泛的使用。考查被动语态和介词词义辨析。by被,由;of的;to去。主语“Light bulbs”和所给谓语动词“use”构成动宾关系,应用被动语态。其构成为“be done”,by“被”,be usedby被……使用,故选A。 反馈 收藏 ...
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