威胁飞行安全的主要天气现象有哪些?
参考答案:
冰雹、大雨、暴雨、雪、米雪、冻雨、大雾、霜降、台风、大风、风切变、低空风切变、强地面风、雷暴、积冰、沙暴、尘暴、火山灰。
句型转换
1. They look at themselves in the mirror. (一般疑问句)
_______ they _______ at themselves in the mirror?
2. She cut herself with the scissors. (对划线部分提问)
_______ ______ she ______ herself?
3. You were a student, your friend was, too. (同义句)
You were a student, ______ _____ your friend.
4. She’s told me many things about you. (反意疑问句)
She’s told me many things about you, _______ _______?
5. They were good at spelling. (同义句)
They ______ _______ ______ spelling.
二甲压机位移监控器两个通道联锁输出采用的是哪种方式?