多片式摩擦离合器的片间间隙，可通过（）来调整，调整时，间隙不宜过大或过小。
参考答案：螺母
完成句子和句型转换 （共20个空；每空0.5分，满分10分）
小题1:_Never ________the children __________ (让孩子玩耍) near water unattended. (leave)
小题2:_ I often practise speaking English with James, who speaks English well .
I often practise speaking English with James, ________ _______ _________ is excellent.
小题3:_ He lay in bed, with his eyes _______ _______ _______ ________ (盯着天花板). (fix)
小题4:_ There will be more people making a living by doing e-commerce.
There will be more people ______ _______ ________ ______ by doing e-commerce.
小题5:________ __________ the shop different（使这间店与别不同的）is the variety of goods.
小题6:_ __________ _________ these figures（这些数据反映）, the company is doing well.
小题7:_I will never forget the days ________ I learned _____ ________ paper cuts（剪纸的日
某人患病后注射青霉素发生了过敏反应，下列有关判断中不能确定的是（）
A．此人不是第一次注射青霉素
B．此人极有可能患了痢疾
C．此人体内发生了免疫反应
D．所发生的反应主要是体液免疫
.
r forget the days ________ I learned _____ ________ paper cuts（剪纸的日