以下()场所的接地干线，应有两处以上与接地体连接。
A.火灾危险环境
B.变配电所
C.非爆炸性气体环境
D.消防控制室
参考答案：A, B
补全对话。
W: Hi, Sam! 1________.
M: I’m reading a book about magic(魔术).
W: 2_____ ?
M:. Yes, I like magic very much. My favorite magician is Liu Qian.
W: Do you want to be a magician?
M: 3________. I just want to know how he does his magic.
W: Magic is really interesting. I want to buy a book about magic, too. 4________ ?
M: In the Xinhua bookstore.
W: Can you go to the bookstore with me now?
M: 5________ . How about tomorrow afternoon?
W: Ok. Thank you.
身体较胖的，宜（）。
A.直发
B.卷发
C.爆炸头
D.寸头
