井口房、瓦斯抽放站及主要通风机房周围（）m内禁止使用明火
A.20
B.30
C.40
参考答案：A
选择正确的答案。
1. 熟人之间见面问候时，常说：[ ]
A. I'm going to school.
B. How are you?
2. 你邀请Mike去画画，你说：[ ]
A. Let's paint!
B. Let's play!
3. 你想看看陈洁的紫色蜡笔，你说：[ ]
A. Show me your green crayon.
B. Show me your purple crayon.
4. 你想把Miss White介绍给Mr Black，你说：[ ]
A. Mr Black, this is Miss White.
B. Miss White, this is Mr Black.
5. 你告诉John你的旗子是红白相间的，你说：[ ]
A. My flag is red and yellow.
B. My flag is red and white.
党的支部委员会名额的要求？
