本研究采用问卷调查的形式，共回收问卷237份。
This present investigation used questionnaires, and received 237 pieces.
不好意思，还有个问题，请问你们什么会在什么时间来重庆回收问卷呢？
Would you please tell me when you will come to Chongqing to collect the questionaire ?
面向山西大学图书馆用户共发放正式问卷400份，有效回收问卷354份。
The survey questionnaires were distributed 400 copies, of which the effective recovery of 354.
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