《建设工程安全生产管理条例》规定,施工单位的()等特种作业人员,必须按照国家专门规定经过专门的安全作业培训,并取得特种作业操作资格证书后,方可上岗作业。
A.垂直运输机械作业人员
B.钢筋作业人员
C.爆破作业人员
D.登高架设作业人员
E.起重信号工
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The story happens millions of years ago. On a planet there are intelligent robots that can think and feel. They are called Autobots(博派) and Decepticons(狂派). The Autobots are the peace-loving and kind machines. However, the Decepticons are cruel. They have only one goal: to rule the planet themselves. They set out to kill the Sutobots. A war between the groups of good and evil begins. The Deceptions destroy almost everything and the Autobots have to fight bravely to survive. Things get worse. Both types of robots travel through time to get energy. Then they find Earth has what they want. So the transformers begin a secret war to control Earth’s energy. Can humans save Earth? Watch the movie and find out! 小题1:When did the intelligent robots first appear in China?
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建筑安装工程质量验收评定是施工单位进行()的反映。
A.质量控制结果
B.质量管理绩效
C.质量提高目标
D.质量创新成果
简述方案执行安排的一般原则。
电喷发动机的在怠速时()。
A.节气门全关
B.节气门全开
C.节气门微开
D.阻风门全关
掩护式液压支架的侧护板的作用是什么?