推拉闸刀开关时，动作应迅速，同时焊工头部偏斜，但不必戴手套。（）
参考答案：错
In your project，you have created performance reports to provide the status and progress information to different stakeholders．The results from the performance reports should be compared to the______．
A．project management plan
B．performance measurement baseline
C．earned value calculations
D．none of the above
情感迟钝在临床上一般多见于（）
A、精神分裂症早期
B、脑器质性精神障碍
C、抑郁发作
D、神经衰弱
