使用手提式灭火顺序为：拔出铁销子拉环、将喷嘴对住火源、人站在上风头、用手压住提手（压手）、这时灭火剂即可喷出。
参考答案：对
补全对话（在横线上填入适当的单词，短语或句子，使对话完整）
A: Hi, John!
B: Hello, Xiao Lin. Come to meet my 1. _____
Dad, this is Xiao Lin. Xiao Lin this is 2. _____
A: Good morning, Mr Brown.
C: 3. _____,Xiao Lin?
A: How do you do?
B: Mom, this is my friend, Xiao Lin.
A: Nice to meet you.
D: 4. _____
B: And these are my grandparents.
E: Hi, Xiao Lin!
A: Hello!
B: And this is my sister, Mary, and this is 5. _____, Jim.
EH供油系统由哪些部件组成？
