客人满意程度是指客人享受旅游企业服务后得到的感受，印象和( )。
A．欣慰B．好情绪C．评价D．咒骂
参考答案：C
As an English major student , I think business English is more practical than other fields.
A．a English student / field
B．a English major student / regions
C．an English major / courses
D．an English student major /sciences
气温从15℃升高到40℃时，发动机（）约下降6%~8%。
A、功率
B、油耗
C、转速
D、压力
