TYJL-II型计算机联锁，道岔单独锁闭，屏幕道岔名称显示（）。
A.红色
B.红色闪光
C.黄色
D.白色
参考答案：A
Of course, there have been times, as a young man, when I got tired from study and devoted my time to playing.()
A. tired of
B. got tired of
C. tired up
D. used to tire of
热轧钢材在空气中自然冷却的方法叫（）。
A.快冷
B.空冷
C.缓冷
