【判断题】按照导致事故的原因把安全技术措施分为,预防事故发生的安全技术措施,控制事故发生的措施和消除减少事故损失的安全技术措施。
【简答题】Mike is an extremely careless man______,it was not until he got to an ATM that it occured to him he had left his card at home.
【单选题】“某压力0.5Mpa的天然气管道”中的是管内燃气的( )压力是0.5MP a 。
【单选题】“某压力0.5Mpa的天然气管道”中的是管内燃气的( )压力是0.5MP。
【单选题】在框架中,在整个框架页中打开链接的代码是
【判断题】按照导致事故的原因把安全技术措施分为,预防事故发生的安全技术措施,控制事故发生的措施和消除减少事故损失的安全技术措施。
【单选题】It was not until he got to the office ________ he remembered ________ the key at home.
【单选题】Mike is an extremely careless man. , it was not until he got to an ATM that it occurred to him he had left his card at home.