接触苯胺的生产或作业属于
A．染料生产B．炸药生产C．铸造作业D．塑料生产E．喷漆作业
参考答案：A
Never ______ so excited because it is the first time that I ______ such a fantastic experience.
A．I have been; had
B．have I been; have had
C．have I been; had had
D．I have been; have
施工组织设计技术经济指标中，安全指标的计算，正确的是( )。
A．工伤事故人次数/本年职工平均人数
B．工伤事故次数/本年职工平均人数
C．工伤事故人次数/本年职工总人数
D．工伤事故次数/本年职工总人数
