单项选择题 阅读下面短文并完成第1个完型填空。 The real-name policy is （1 ）not only in buying train tickets, but also in the check-in system. The pilot project is taken into ( 2 ) in Beijing, Shanghai, Wuhan, Guangzhou, Chengdu and their subordinates, ( 3 ) 50 stations. The passenger's name and the number of ID certificate will be printed on the ticket. Passengers should ( 4 ) the train tickets with their own ID certificates, and then pass the ( 5 ) and check-in in those stations.

单项选择题 西方发达国家发展到目前水平用了二百多年时间。我们要后来居上，决定了我国发展必然是一个（    ）的过程。 A. 并联式B. 串联式 C. 波浪式前进 D. 螺旋式上升

单项选择题 《管理运筹学》求解的下一步是(          )。 A、解的控制 B、解的实施 C、后评估 D、解的检验