你们学校的CET-4通过率有多少？怎么翻译

what's the percent of pass the CET-4 of your school?

通过率 [朗文汉英综合电脑词典]
throughput efficiency
通过率 [汉英电信大词典]
throughput efficiency ;throughput rate
通过率 [汉英广播大词典]
throughput efficiency
通过率 [汉英水利大词典]
percent passing
通过率 [汉英冶金大词典]
percent of pass

What is the passing rate for CET-4 of your school?