单项选择题

Good lighting in factories leads to greater comfort, higher ______ and productivity, fewer mistakes and accidents.

A．achievement
B．proficiency
C．craft
D．efficiency
<上一题 目录 下一题>
热门 试题

单项选择题
The purpose of the study is to ______ the role played by father in the raising of a child.
A．estimate
B．calculate
C．evaluate
D．predict
单项选择题
This was the last public ______ the president made before his term of office ended.
A．appearance
B．engagement
C．gathering
D．conference
相关试题