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The person who ______ this type of research deserves our praise. A. originated B. manufactured C. generated D. estimated [originate] originate 起源于 origin 起源 original 最初的、原创的 embark 开始、登上 [/originate] [abroad] abroad 到国外 broad 宽敞的、宽阔的 blackboard 黑板 board 木板 aboard 登船、登飞机 [/abroad] [manufactured] manufactured 手工做的、人造的 manufacture 制造、加工 manual 手册 [/manufactured] [generate] generate 产生、发生 hate 憎恶 [/generate] [estimate] estimate 估计 | 
