自由竞争时期，资本主义国家对外经济联系的主要方式是商品输出。( )
参考答案：对
根据首字母或汉语提示，补全单词。
1. I _____ (参加) you for breakfast this morning.
2. My mother is making soup. It smells _____(香).
3. They enjoyed _____ (种) vegetables.
4. He won, we are p_____ of him.
5. I built one of my rockets m_____ at home.
平面控制网分几级布设？每一级的作用是什么？
