求翻译：全国计算机考试(二级合格)书。张宁参加1998年9月全国计算机等级考试，成绩合格，特此证明，证书的编号：20081007108。身份证号：15010278128595。颁发单位：教育部考试中心，是什么意思？

National computer test (two pass) book. Zhang Ning to participate in September 1998 National Computer Rank Examination results qualified, hereby certify that the certificate number: 20081007108. ID number: 15010278128595. Issued by: the Ministry of Education Examination Center,

National Computer examinations (Level 2 qualified) book. In September 1998, Zhang Ning participated in the National Computer grade examinations, hereby certify that, to pass the certificate number: 20.081007 billion. ID No. 15010278128595. Unit: The Ministry awarded examination centers.

National computer test (two levels qualified) book.Zhang Ning participated in, 1998 the national computer rank test, the result is September qualified, proved specially, certificate serial number: 20081007108.ID card number: 15010278128595.Issues the unit: Ministry of Education test center,

National computer examination (second-level qualified). Zhang Ning participation in the September 1998 national computer rank examination, pass, this is to certify that, certificate number: 20,081,007,108. ID number: 15,010,278,128,595. Issued by: Ministry of education, the test center,

National computer test (two levels qualified) book.Zhang Ning participated in, 1998 the national computer rank test, the result is September qualified, proved specially, certificate serial number: 20081007108.ID card number: 15010278128595.Issues the unit: Ministry of Education test center,