调车组人员与扳道人员间及扳道人员之间要道还道除使用显示手信号的方式外,还可采用何种方式?
参考答案:
也可采用调车无线电话或无线调车灯显设备进行要道还道。
—It has been written into law that drink driving can be a crime (罪).
—I quite agree. We should better be careful not to _________ the law. [ ]
A. test
B. cheat
C. break
D. deal
混流式水轮机导轴承冷却水压一般要求在()MPa左右。
A、0.1;
B、0.2;
C、0.3;
D、0.4。