问题
选择题
To make members of a team perform better，the trainer first of all has to know their and weaknesses．
A．strengths
B．benefits
C．techniques
D．values
答案
A
strengths and weaknesses优点和缺点, benefit n.益处, 好处；technique n.技巧, 手法, 技术；value n.价值, 价格。