Which two statements regarding JUNOS architecture are correct？（）
A. The Routing Engine handles all exception traffic.
B. The Routing Engine synchronizes the route table with the PFE
C. The Routing Engine is hot-pluggable.
D. The Routing Engine controls the PFE
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下列句子中，状语次序不当的是（）
A. 欢送会昨天已经在礼堂里隆重举行了
B. 他从小是革命队伍把他抚养成人的
C. 目前在美国患癌症的人中有一半能活至少五年
D. 那时，我在斗室里悄悄读着北岛的诗
Auser,Jill,isreportinghermouseismovingwhenJillisnotmovingit,andthecomputerisrunningslowerthannormal.WhichofthefollowingistheFIRSTactionthatKaren,atechnician,shouldtake?（）
A. Runchkdsk.
B. Runanantivirusprogram.
C. Replacethefaultymouse.
D. Removeanyrecentlyaddedhardware.
统计数据的关联性是指（）。
A. 最低的抽样误差
B. 最小的非抽样误差
C. 满足用户需求
D. 保持时间序列的可比性
Acustomerreportsthaterrormessagesoccasionallyappearandquicklydisappear.WhichofthefollowingistheBESTplaceforatechniciantobegintroubleshootingthisissue?（）
A. RunaSystemRestore
B. CheckDeviceManager
ChecktheEventLogs
D. ChecktheSystemInformation
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