【单选题】You made the same mistake for ______ third time , dropping _____ “r” in the word “ government” .
【单选题】以下不属于UASB的特点的是()
C.
污泥的颗粒化使反应器内的平均浓度50gVSS/l以上,污泥龄一般为30天以上;
D.
UASB反应器集生物反应和沉淀分离于一体,结构紧凑。
【单选题】You made the same mistake for _____ second time, dropping _____ 'n' in the word. [ ]
【单选题】The phrase 'Made in China' has become ______ the same meaning for getting what you need on the cheap.
【单选题】You made the same mistake for _____ second time, dropping _____ “n” in the word “government”.
【单选题】You made the same mistake for _____ second time, dropping _____ “r” in the word “preferred”.