| Everyone knows that in the city of Pisa
in Italy there is a tower that "leans". The tower is built entirely of white marbles. The walls are 13 feet thick at its base. It has eight storeys and is 179 feet high. There is a stairway of 300 steps built into the walls, which leads to the top. At the top of the tower, you’ll see the city and the sea. The sea is six miles away. At the top, the tower is 16.5 feet out of the perpendicular. In other words, it "leans" over by 16.5 feet. If you were to stand at the top and drop a stone to the ground, it would hit 16.5 feet away from the wall at the bottom of the tower! What makes it lean Nobody really knows the answer. Of course, it wasn’t supposed to lean when it was built; it was supposed to stand straight. It was intende [多选题]落实干部消防员分训、骨干组训,消防员骨干重点进行( )。
A.应急救援理论 B.装备操作使用 C.组训任教 D.专业技能训练 [单选题] 滑车及滑车组使用前应进行检查，发现有裂纹、轮沿破损等情况者，不影响转动的情况下慎重使用。
A.正确 B.错误 [简答题]简述用电系统用负荷的分类？
[单选题]绒毛膜癌最常见的转移部位是
A.阴道 B.脑 C.肝 D.肾 E.肺 [单选题]电焊机规定描述错误的是( )。
A.雨雪天不应露天电焊作业 B.在潮湿地带作业时,操作人员应站位于绝缘物上方 C.在潮湿地带作业时,操作人员应穿防滑鞋 D.移动电焊机时,应切断电源,不得用拖拉电缆的方法移动焊机 [多选题] 下列哪些选项是列车运行图的编制依据。( )
A.各站停车时分 B.各区间运行时分 C.可用列车数 D.分时段的列车间隔时分 [单项选择]当患者的意识丧失，诊断心搏停止的指标是（）。
A. 呼吸停止 B. 瞳孔散大 C. 脉搏不清 D. 大动脉搏动消失 E. 血压测不到 [多项选择]The answers each list a tunnel method and two consecutive IPv6 address quartets.Which answers identify a tunneling method that relies on an IPv4 address to be embedded into an IPv6 address, within the correct quartets listed?（）
A. Automatic 6to4, quartets 2 and 3 B. Automatic 6to4, quartets 7 and 8 C. ISATAP, quartets 2 and 3 D. ISATAP, quartets 7 and 8 [单项选择]
A. Never lean forward. B. Never lean backward. C. Never lean away from the shore. D. Never get out of the canoe. [单选题] 取得( )资质证书的安全培训机构,可以承担市、县级安全生产监督管理部门的安全生产监察员的培训。
A.一级 B.二级 C.三级 D.四级 我来回答: 提交
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