153.当进路上的有关道岔开通位置不正确,道岔第一连接杆处(分动外锁闭道岔为锁闭杆处)的尖轨与基本轨、心轨与翼轨有( )mm及其以上间隙,敌对进路未解锁或照查条件不符时,防护该进路的信号机不能开放。

198.A199.A200.C201.B202.C203.C204.C205.D206.C207.D208.C209.C210.B

185.C186.D187.A188.D189.C190.C191.A192.C193.D194.B195.C196.B197.C

172.B173.A174.A175.D176.D177.D178.B179.B180.C181.B182.D183.D184.B

159.D160.C161.D162.A163.A164.A165.A166.A167.A168.B169.A170.B171.A

146.D147.B148.B149.C150.B151.C152.C153.D154.C155.A156.A157.C158.A

133.B134.D135.D136.A137.C138.A139.C140.B141.A142.D143.A144.A145.B

120.D121.C122.D123.D124.D125.C126.B127.D128.C129.C130.C131.B132.C

107.C108.A109.A110.B111.A112.D113.B114.A115.C116.A117.C118.D119.A

93.C94.A95.A96.B97.D98.B99.C100.A101.A102.D103.A104.C105.C106.A

78.D79.D80.B81.C82.B83.A84.A85.B86.C87.C88.C89.D90.C91.D92.A