题目内容

Construction of a new automobile parts manufacturing facility has recently been completed. Thefacility IT manager wants to deploy voice over WLAN. During your initial walkthrough， you observenumerous highly reflective surfaces on the manufacturing equipment and in the buildingconstruction itself. What potential problem exists that should be accounted for during your sitesurvey？（）

A. LOS modulation
B. Multipath distortion
C. RF signal absorption
D. RF signal attenuation
E. Fresnel zone impedance

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