经检验检疫发现检疫对象或产品质量与安全卫生条件不合格的商品，出入境检验检疫机构有权阻止出境。
参考答案：对
I told them not everybody could run as fast as you did, _____? [ ]
A. could he
B. didn't I
C. didn't you
D. could they
数据库安全性和计算机系统的安全性有什么关系？
