题目内容：
Writing a Research Paper
1．Research Paper and Ordinary Essay
[A]Similarity in(1)__________： (1) __________
e.g.
--choosing a topic
—asking questions
--identifying the audience
[B]Difference mainly in terms of(2) __________(2)__________
1．research paper：printed sources
2．ordinary essay：ideas in one’s(3)__________(3)__________
11．Types and Characteristics of Research Papers
[A]Number of basic types：two[B]Characteristics：
1．survey-type paper：
一to gather(4)—— (4) __________
—to quote
—to(5)__________(5) __________
The writer should be(6)__________(6) __________
2．argumentative(research)paper：
[A]The writer should do more，e．g．
一to interpret
—to question，etc．
[B](7)__________varies with the topic，e．g． (7)__________
—to recommend an action．etc．
根据材料，请在（1）处填上最佳答案。
参考答案：
答案解析：