【单选题】Don: Gina, do you like sports?
A.
Yes. I am liking racketball and volleyball.
B.
Yes. I like racketball and volleyball.
C.
Yes. I likes racketball and volleyball.
【简答题】CRM 系统结构分三个层次:界面层 , 功能层 ,( )
【单选题】一般来说,整个CRM系统可分为三个层次:界面层、功能层和()
【单选题】Gina likes bananas _____ her brother doesn't like them. [ ]
【单选题】采集工作场所空气中金属汞时,最常用的吸收液是( )。
【简答题】通常,根据过失的严重程度和所造成的伤害,可细分为轻微过失、 和 。
【单选题】采集工作场所空气中金属汞时,最常用的吸收液是