26. The person who ______ this type of research deserves our praise.
A. originated B. manufactured C. generated D. estimated

<originate>
originate (from) 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
</estimate>