個完整的無線網(wǎng)絡規(guī)劃通常包括()。①規(guī)劃目標定義及需求分析②傳播模型校正及無線網(wǎng)絡的預規(guī)劃③站址初選與勘察④無線網(wǎng)絡的詳細規(guī)劃A. ①②③④B. ④C. ②③D. ①③④