企业质监机构必须是独立的、健全的、二级建制的专职机构。( )
参考答案：对
—You aren't a stranger, are you?
—___ _, don't you remember ____ me at the school gate ten minutes ago? [ ]
A. Yes, to see
B. No, seeing
C. Yes, having seen
爆破时，（）必须由爆破工本人进行。
A、装药
B、联线
C、起爆
D、瓦斯检查
