《设备一类障碍报告》应由设备发生部门的专业技术人员填写，经障碍单位的领导和安监工程师审核上报
参考答案：对
When the sick mother got up, she was surprised to find that her six-year-old daughter _______ in the kitchen.
A．had cooked
B．has cooked
C．was cooking
D．cooked
使用逻辑“与”是为了（）
A、提高查全率
B、提高查准率
C、减少漏检率
D、提高利用率
