问卷是在大街上随机发放的,人们常常快而粗略地作出反应,这也会影响问卷的可靠性.
Questionnaire is issued at random around the street and rough responses will be quickly made by people ,which will creat influence upon the reliablity of the questionnaire
问卷是在大街上随机发放的,人们常常快而粗略地作出反应,这也会影响问卷的可靠性.
Questionnaire is issued at random around the street and rough responses will be quickly made by people ,which will creat influence upon the reliablity of the questionnaire