皮皮学,免费搜题
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搜题
【单选题】
数控机床进给系统不能采用( )电机驱动。
A.
直流伺服
B.
交流伺服
C.
步进
D.
笼式三相交流异步
拍照语音搜题,微信中搜索"皮皮学"使用
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【单选题】风险类 保证金和案件类保证金3种。下列选项中,属于风险类保证金的是():
A.
对加工贸易货物备案征收的保证金
B.
对无法或者不变扣留的货物、物品或者运输工具收取的保证金
C.
海关尚未确定商品归类、完税价格等征税要件而收取的保证金
D.
对申请延期缴纳税款收取的保证金
【单选题】根据担保业务性质的不同,海关依法收取的保证金资金分为税款类保证金、风险类 保证金和案件类保证金 3 种。下列选项中,属于风险类保证金的是()
A.
对加工贸易货物备案征收的保证金
B.
对无法或者不变扣留的货物、物品或者运输工具收取的保证金
C.
海关尚未确定商品归类、完税价格等征税要件而收取的保证金
D.
对申请延期缴纳税款收取的保证金
【多选题】对于跨度6m的钢筋混泥土简支梁,当设计无需要时,其梁低木模板中可采用的起拱高度有( )
A.
.5cm
B.
10cm
C.
20cm
D.
25cm
E.
15cm
【判断题】2 There is no network congestion in a circuit switching network.
A.
正确
B.
错误
【判断题】In the United States, there is no government-owned television network.
A.
正确
B.
错误
【单选题】A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?()
A.
It immediately sends its entire routing table to its neighbors.
B.
EIGRP sends a Hello packet to the DR to inform it of the route failure.
C.
It automatically forwards traffic to a fallback default route until a successor route is found.
D.
It sends queries out to neighbors until a new successor route is found.
E.
It places the route in holddown until LSA updates inform it of a new route to the network.
【单选题】A technician needs to add network capacity. However, when plugging a second switch into the first switch, there is no link light. Which of the following is the cause of this situation?()
A.
The switches are not stackable
B.
The cable was not wired using 568A
C.
The cable needs to be a crossover cable
D.
The switches have IGMP snooping enabled
【单选题】根据担保业务性质的不同,海关依法收取的担保资金分为保证金、风险保证金和抵押金3种。下列选项中,属于风险担保金的是( )。
A.
对实施联网监管的加工贸易企业收取的担保资金
B.
对无法或者不变扣留的货物、物品或者运输工具收取的担保资金
C.
海关尚未确定商品归类、完税价格等征税要件而收取的担保资金
D.
对缉私、稽查查获的执行风险较大的追征补征税款情事的
【判断题】There is no network-layer protocol that can be used to identify the hosts participating in a multicast group.
A.
正确
B.
错误
【判断题】In the United States, there is no government-owned television network.
A.
正确
B.
错误
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