单项选择题
A.一般来说,它最好将重心放在讲解的内容上,使之成为吸引观众注意力的方式。 B.一般的规则是,它最好集中在礼物的内容上,这比吸引观众的注意力更好。 C.一般的规则是,它最好注重讲解的内容,这意味着可吸引到观众的注意力。 D.总的说来,最好把重点放在讲解的内容上,借此来吸引观众的注意。
A.the poor families often do not have enough food to eat B.the hunger for the poor family is just short-term C.not all the poor families encounter food-shortage D.all the poor families do not have food to eat
A.Employer and employee. B.Teacher and student. C.Seller and customer. D.Interviewer and interviewe