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【单选题】
包车时,棚车代用客车,按车辆( )计算定员(每吨按1.5人折算)核收棚车客票票价。
A.
标记载重
B.
实际载重
C.
实际乘车人数
D.
实际与标记载重差额
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地接社
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组团社
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【单选题】( )是在网络层上实现多个网络互连的设备,它可以实现不同高层协议间的转换。
A.
DNS
B.
FTP
C.
网关
D.
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【简答题】( )是在网络层上实现多个网络互连的设备,它可以实现不同高层协议间的转换。
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【判断题】在网络层上实现多个网络互连的设备是路由器
A.
正确
B.
错误
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【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
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【简答题】在网络层上实现多个网络互连的设备是( )
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【单选题】如果地方导游人员在接到旅游团后发现该团人数发生了变化，应及时通知()，变更旅游团的住宿和餐饮安排。
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【单选题】The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the databa...
A.
You obtain the results retrieved from the public synonym HR created by the database administrator.
B.
You obtain the results retrieved from the HR table that belongs to your schema.
C.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
D.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
E.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
查看完整题目与答案
【简答题】在网络层上实现多个网络互连的设备是( )
查看完整题目与答案