《铁路技术管理规程》中附件2是指什么？
参考答案：
《铁路技术管理规程》中附件2是指绿色许可证。
写出下列单词的对应词。
1. man → ________________
2. waiter → ________________
3. businessman → ________________
He spoke through a microphone , ______ he was clearly heard in the great hall.
A．even if
B．because
C．in order that
D．so that
