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题目内容
（国家开放大学管理英语2）
What is necessary to write a good questionnaire?
选择一项：
a.
A lot of skills and study.
b.
A lot of money and time.
c.
A lot of skills and experience.
选择一项：
a.
A lot of skills and study.
b.
A lot of money and time.
c.
A lot of skills and experience.
参考答案