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单选题
The establishment of INMARSAT as an independent organization marked a great step forward for maritime radio communications. What does “marked a great step” mean in the sentence?（）
A
To run faster than ever
B
To go forward
C
To march without stopping
D
A significant symbol of a great improvement in maritime communication
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更多 “单选题The establishment of INMARSAT as an independent organization marked a great step forward for maritime radio communications. What does “marked a great step” mean in the sentence?（）A To run faster than everB To go forwardC To march without stoppingD A significant symbol of a great improvement in maritime communication” 相关考题
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In the United States, every church is a completely independent organization,and concerned with its own finance and its own building.()
此题为判断题(对，错)。
考题
169 Management by Objectives (MBO)A. is a method used to evaluate personnel by objectively comparing them to common performance standardsB. requires a supervisor and a subordinate to jointly establish performance objectivesC. should be the responsibility of the organization's personnel departmentD. should always involve the establishment of objectives that are quantifiableE. B and D
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考题
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考题
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考题
下面INMARSAT-A和INMARSAT-C哪种说法不正确：（）A、INMARSAT-A和INMARSAT-C卫星覆盖区相同，但洋区码不同B、INMARSAT-A和INMARSAT-C相同的卫星C、INMARSAT-A和INMARSAT-C相同的CES，识别码不同D、INMARSAT-A和INMARSAT-C信道，频率间隔不同
考题
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考题
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考题
单选题采用方向性天线的Inmarsat移动站是（）①Inmarsat-B；②Inmarsat-F77；③Inmarsat-mini-C；④Inmarsat-CA
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③④C
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①④
考题
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Optional authentication phase, link establishment phase, network layer protocol phase.B
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Network layer protocol phase, optional authentication phase, link establishment phase.D
Link establishment phase, network layer protocol phase, optional authentication phase.E
Link establishment phase, optional authentication phase, network layer protocol phase.F
Optional authentication phase, network layer protocol phase, link establishment phase.
考题
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