【单选题】______, the design is useless.
【单选题】必须为行政法律规范所确认,是一种法律责任,行政职责人不是一种政治上或者道义上的责任,而是一种法律所明确规定的责任。
【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( )