出站信号机不能开放时，优先采用（）的方式准备发车进路。
A.单独锁闭
B.调车进路锁闭
C.现场人工锁闭
D.引导总锁闭
参考答案：B
根据句意和提示完成单词。
1. What's the m_____? I have a h_____.
2. I can't speak English, because I have a sore t_____.
3. He eats too much, he has a s_____.
4. My mother has a toothache. She has to see the d_____.
5. You should drink hot tea with _____ (蜂蜜).
滞燃期
