题目内容

公民无权决定、使用和依照规定改变自己的姓名。

A. 正确
B. 错误

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You are the network administrator of a Layer 3 switched network. Users in one VLAN are complaining that access to the server VLAN is very slow from time to time. Traffic in the local VLAN works without any issue, and users in other VLANs do not have any complaint to reach the server VLAN. What is most likely the cause of this issue?()

A. routing issue
B. denial-of-service attack
C. MAC flooding
D. spanning-tree recalculation
E. Layer 2 loop
F. ARP spoofing attack

锅炉压力式机械喷油器中引起油旋转的切同槽和旋涡室是在()上。

A. 喷嘴体
B. 喷嘴帽
C. 雾化片
D. A+B+C

单层钢结构安装工程中,地脚螺栓(锚栓)尺寸的允许偏差为()。

A. 螺栓(锚栓)露出长度+30.0mm,0.0mm
B. 螺栓(锚栓)露出长度+20.0mm,0.0mm
C. 螺栓(锚栓)露出长度+30.0mm,5.0mm
D. 螺纹长度+30.0mm,0.0mm
E. 螺纹长度+20.0mm,0.0mm

钢筋混凝土梁在荷载作用下产生的主拉应力,大部分由()来承担。

A. 架立钢筋
B. 水泥混凝土
C. 斜拉钢筋
D. 箍筋

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