单项选择题

As a general rule. it is better to focus on the content of a presentation as a means of attracting your audience’s attention.（）

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。

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单项选择题

In the second paragraph the writer tries to tell us that（）

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

单项选择题

The study by South Dakota’s Board of Regents shows that（）

A. online courses are available at any time
B. online courses are well accepted by on-campus students
C. online courses should gradually take place of traditional courses
D. online courses can be more beneficial for college students