在开展正式调研之前对问卷进行了预调研，预调研的被调查群体是随机选取的西

Before conducting the formal survey, the questionnaire was pre-investigated. The pre-surveyed survey group was randomly selected 30 students from a major in Xi'an Petroleum University. The questionnaire was revised and improved based on the survey results. The purpose of the pre-survey is to find out the shortcomings of the questionnaire by conducting a trial survey on a small number of respondents, and correct the shortcomings to form a formal questionnaire. Through the trial survey, most of the surveyed students reported that the main problems in the questionnaire are: the number of questions in the questionnaire is too large, some questions are difficult to understand or are easily misunderstood, and the interviewee repeated the same question. Asking questions is cumbersome. <br>This article has dealt with the questionnaire in two ways: First, after querying the information on the employment issues of college students, combined with the data, some difficult and similar questions in the questionnaire were modified and deleted, and some questions were modified. Of the question, try to make the question easy to understand and without ambiguity

Before carrying out the formal survey, the questionnaire was pre-investigated, and the group surveyed was 30 students of a specialty of Xi'an Petroleum University who were randomly selected, and the questionnaire was revised and improved according to the results of the survey. The purpose of the preliminary research is to find out the shortcomings of the questionnaire by a small number of the subjects, to correct the insufficient part, and then form a formal questionnaire. Through the test survey, most of the students surveyed in the feedback questionnaire there are: the number of questions in the questionnaire is too many, some questions in understanding some difficulties or easy to be misunderstood, respondents on the same question repeatedly asked about the difficult.<br> This paper deals with the questionnaire in two ways for the above-mentioned questions: First, after querying the information on the employment of college students, combining the information, modifying and deleting some of the more difficult to understand and more similar questions in the questionnaire, modifying some of the questions, trying to make the question easy to understand and not ambiguous

Before the formal investigation, the questionnaire was pre investigated. The pre investigated group was randomly selected 30 students from a major of Xi'an Petroleum University. According to the investigation results, the questionnaire was modified and improved. The purpose of the pre survey is to find out the deficiencies of the questionnaire through a trial survey of a small number of respondents, and then correct the deficiencies to form a formal questionnaire. Through the test survey, most of the students in the survey feedback the main problems in the questionnaire are: the number of questions in the questionnaire is too large, some questions have some difficulties in understanding or are easy to be misunderstood, and the interviewees feel cumbersome to ask the same questions repeatedly.<br>This paper deals with the above questions in two aspects: first, after inquiring the information about the employment problems of college students, combined with the information, some difficult and similar questions in the questionnaire are modified and deleted, and the stem of some questions is modified to make the questions easy to understand and unambiguous<br>