Task 4 A —bullet train J — floating prices B —floating prices K —real-name purchase C —-non-stop train L—replacement ticket D —dedicated rail link M —on-schedule rate E —business cabins N —occupancy rale F —first-class seats O —passenger rail line G —second-class seat P —run chart H —protective fence Q —vehicle type I —passenger flow Examples: (P) 运行图 ( B)城际高铁 1. ( )实名购票 2. ( ) 一等座 3. ( )直达列车 4. ( ) 浮动票价 5. ( ) 客流 6. ( ) 补票 7. ( )正点率 8. ( ) 防护栏 9. ( )车型 10. ( ) 商务车厢