题目与板式塔相比,填料塔的优点是______。A. 压降大,持液量大B. 压降小,持液量小C. 压降大,持液量小D. 压降小,持液量大与板式塔相比,填料塔的优点是______。A. 压降大,持液量大B. 压降小,持液量小C. 压降大,持液量小D. 压降小,持液量大题目解答答案B. 压降小,持液量小