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运行区段 operating range
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For users, microkernel technology promises(90), compact and sophisticated operating systems that are typically(91)across a range of hardware platforms. These operating systems will be customizable to let users run multiple operating system and application "personalities" on top of a single microkernel(92).Microkernel based systems can provide this flexibility because the core operating system functions are(93)from the large number of utilities, features and extensions that are layered on top of them. As a result, updating and maintaining operating system is easier, since developers don't have to modify the(94)every time they must acid a new feature.A．slowB．fastC．quicklyD．speed
考题
11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?()
A. 460 feet (140 meters)B. 540 feet (165 meters)C. 560 feet (171 meters)D. 840 feet (256 meters)
考题
For users, microkernel technology promises(11), compact and sophisticated operating systems that are typically(12) across a range of hardware platforms.A．quicklyB．speedC．slowD．fast
考题
重型轨道车跨管辖区段运行及大修、工程部门的重型轨道车在驻在地至施工区段运行时，重型轨道车司机必须熟悉掌握运行区段的有关行车规定及线路、信号设备的情况。否则应指派熟悉运行区段情况的当地重型轨道车司机（）或提前组织轨道车司机对运行区段（）。
考题
Which of the following best describes why a customer would choose x86 server solutions over mid-range or mainframe solutions？（）A、x86 servers are more reliable than mid-range and Mainframe servers.B、x86 servers require less support personnel.C、Microsoft Operating Systems require less maintenance than mid-range and Mainframe Operating Systems.D、x86 solutions cost less.
考题
802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）A、460 feet (140 meters)B、540 feet (165 meters)C、560 feet (171 meters)D、840 feet (256 meters)
考题
填空题重型轨道车跨管辖区段运行及大修、工程部门的重型轨道车在驻在地至施工区段运行时，重型轨道车司机必须熟悉掌握运行区段的有关行车规定及线路、信号设备的情况。否则应指派熟悉运行区段情况的当地重型轨道车司机（）或提前组织轨道车司机对运行区段（）。
考题
单选题What is TRUE when operating in fog and other vessels are detected by radar?（）A
you should make an ample change to port for a vessel crossing on the starboard bowB
You should maneuver in ample time if a close-quarters situation is developingC
You should determine the course and speed of all radar contacts at six minutes intervalsD
Long-range scanning will provide early warning of all other vessels within the radar’s range
考题
单选题802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）A
460 feet (140 meters)B
540 feet (165 meters)C
560 feet (171 meters)D
840 feet (256 meters)
考题
单选题When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will （）.A
pick up more of any increase in loadB
pick up less of any increase in loadC
share an equal amount of any increase in loadD
drop an equal amount of any decrease in load
考题
单选题Which of the following best describes why a customer would choose x86 server solutions over mid-range or mainframe solutions？（）A
x86 servers are more reliable than mid-range and Mainframe servers.B
x86 servers require less support personnel.C
Microsoft Operating Systems require less maintenance than mid-range and Mainframe Operating Systems.D
x86 solutions cost less.
考题
单选题Critical speeds occurring within the operating speed range of a main propulsion diesel engine may be changed, or have their damaging effects reduced by a/an （）A
engine support vibration isolatorB
detuner or viscous fluid damperC
lightened crankshaft flywheelD
spherically seated crankshaft bearing
考题
单选题On which vessels is GMDSS required? （）A
All vessels capable of international voyagesB
Vessels operating outside of the range of VHF coastal radio stationsC
SOLAS Convention ships of 300 gross tonnage or moreD
Coastal vessels of less than 300 gross tons
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