Method Self-designed questionnaire survey was conducted among 95 chief nurses of cluster conveniencesample.
方法采用整群方便样本,运用自设问卷对95名三甲医院主管护师进行调查。
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Another limitation is that brands for this study were not selected strictly on the basis of market share or to represent a broad range of tar yields, but rather were a conveniencesample.
The methods of this thesis are literature and survey. The author selected two Suzhou Vocational Colleges as a sample through convenience sampling questionnaire.