微波通信具有()等特点，可用于点对点、一点对多点或广播等通信方式。
A、可用频带宽ABCD
暂无解析
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
ThecompanyissuesanannualreporteveryMarch.
ThefuturesurvivalofthebaldeagleisstillanimportantAmericanecologicalconcern.
Amythical(imaginary)creature,thedragonwasbelievedtohavelion'sclaws,scalyskin,andfierybreath.
Insectpestsareamongtheleadingcausesofcropfailure.
