吹扫管线时先扫主线，后扫（），不留死角，机泵走副线。
参考答案：支路
根据句意及首字母提示完成单词.
1. Mary is my c_______．Her father is my uncle.
2.T________ you for your notebook.
3. Jack is my father.I am his s____.
4. My mother's daughter is my s____.
5. He is my mother's brother. So he is my u____．
6. My father's sister is my a____.
7. I'm a girl, and I'm my parents'd______.
8. He is my parents' son, and he's my b____.
述评写作的基本要求？
