施工单位应当根据建设工程施工的特点、范围，对施工现场易发生重大事故的部位、环节进行监控，制定施工现场生产安全事故（）。
参考答案：预防措施
1. Once the car starts moving, which wheel will travel farther?
A. The front wheel.
B. The back wheel.
C. They will cover the same distance.
D. They will cover different distances.
Answer:
2. Which month do soldiers hate?
下列物质能和盐酸发生中和反应的是
A．硝酸银
B．氧化铜
C．熟石灰
D．锌
