How many times did Ningbo Rail Transit Group pass the safety knowledge test during the induction training?
90 points. Ningbo Rail Transit Group got a perfect score of 100 in the safety knowledge examination for induction training, and a passing score of 90, so it reached 90. Ningbo Rail Transit is an urban rail transit serving Ningbo City, Zhejiang Province, China. Its first subway line was put into trial operation on May 30th, 20 14.