【单选题】______, the design is useless.
【单选题】Which of the internal skills is NOT mentioned in this passage?
D.
Cross-culture travelling.
【单选题】消费者购买行为按购买目标的选定程度来分,可以有( )
【单选题】The English teacher focuses his teaching ______on improving students' listening and speaking ability.
【多选题】消费者购买行为按购买目标的选定程度来分,可以有( )