更多"An “atoll cloud” forming over an is"的相关试题:
[单项选择]An atoll cloud forming over an island due to heating of the land during the daytime would be which type? （）
A. Cirrus
B. Cumulus
C. Stratus
D. Nimbus
[单项选择]If a tow-stroke/diesel engine is over-speeding due to leakage of lube oil into the cylinders, what should you do to stop the engine?（）
A. Move the fuel control mechanism to the no fuel position
B. Block the fuel supply by closing the master fuel valve
C. Shut off the fuel supply and block the flow of intake air
D. Relieve all pressure in the fuel system
[单项选择]Due to GPS roll over of the clock cycle，GPS receivers may give the wrong time and position or may lock up permanently on（）.
A. 21-Aug-99
B. 21-Sep-99
C. Octoer 31，1999
D. 31-Dec-99
[多项选择]Atoll中支持哪几种MIMO模式（）
A. Tx/Rx diversity
B. MU-MIMO
C. AMS
D. SU-MIMO
[多项选择]Atoll缺省提供哪几种业务类型（）
A. FTP Download
B. Video Conferencing
C. VoIP
D. Web Browsing
[多项选择]Atoll可以直接输出的覆盖图包括（）
A. 参考信号强度
B. 最佳服务小区
C. 小区峰值吞吐率
D. 小区平均吞吐率
[单项选择]In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.
A. rising air currents produced by the warm islands
B. warm air from the sea rising over higher land areas
C. cool land air mixing with warm sea air
D. descending air over the islands
[多项选择]Atoll LTE模块支持哪几种调度算法（）
A. Proportional Fair
B. Proportional Demand
C. Max C/I
D. Fair Round Robin
[多项选择]Atoll提供以下哪几种话务环境（）
A. dense urban
B. urban
C. suburban
D. rural
[多项选择]在Atoll中，用户可选的调制方案（）
A. BPSK
B. QPSK
C. 16QAM
D. 64QAM
[单项选择]In many areas “atoll” clouds (clouds of vertical development) are produced over small islands. These are the result of（）.
A. rising air currents produced by the warm islands
B. warm air from the sea rising over higher land areas
C. cool land air mixing with warm sea air
D. descending air over the islands
[多项选择]在Atoll中，移动性类型包括哪几种（）
A. 50km/h
B. 90km/h
C. Fixed
D. Pedestria
[多项选择]在Atoll中，自动Physical Cell ID分配的前提（）
A. MIMO方案
B. 频率方案已确定
C. 小区支持干扰调度
D. 邻小区方案已确定
[多项选择]Atoll提供以下哪几种建立话务地图的方法（）
A. 每种用户行为的话务地图
B. 每种地物的话务地图
C. 每个扇区的话务地图
D. 每种用户密度的话务地图
[单项选择]在Atoll中，导入clutter文件时选择的数据种类是（）
A. Altitudes
B. Clutterheights
C. Clutterclasses
D. Vectors
[单项选择]以下哪种建立话务地图的方法是Atoll无法提供的（）
A. 每种用户行为的话务地图
B. 每种地物的话务地图
C. 每个扇区的话务地图
D. 每种用户密度的话务地图
[单项选择]在Atoll中，下面哪个zone区域下允许存在多个polygon（）
A. FocusZone
B. HotspotZone
C. PrintingZone
D. FilteringZone
[单项选择]When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
A. The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings
B. After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustment
C. During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearing
D. After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
[单项选择]在模型校正的时候，Atoll软件一般是基于什么模型进行校正的（）
A. Okumura-Hata
B. SPM
C. COST231-Hata
D. Aricom
