单项选择题

The main point of paragraph 2 is ______.

A．to define technical terms
B．to define terms and scope of the study
C．to outline the main sections of the report
D．to summarize the area to be covered in the article

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单项选择题

The main point of paragraph 5 is ______.

A．to describe the existing research in the field
B．to point out the limits of research in this area
C．to describe learning strategies identified as so
D．to summarize the scope of the present article

单项选择题

In paragraph 3 the writer uses the phrase to the best of my knowledge... because ______.

A．she has good knowledge of this area
B．she is not sure if the area has been researched in Hong Kong
C．she thinks the area has been researched in Hong Kong
D．she does not wish to take responsibility for any omissions in the bibliography